Adding upstream version 1:4.8.1.upstream/1%4.8.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

48 files changed, 10110 insertions, 0 deletions

diff --git a/man/zh_CN/Makefile.am b/man/zh_CN/Makefile.am
new file mode 100644
index 0000000..e9d8f2c
--- /dev/null
+++ b/man/zh_CN/Makefile.am
@@ -0,0 +1,66 @@
+
+mandir = @mandir@/zh_CN
+
+man_MANS = \
+	man1/chage.1 \
+	man1/chfn.1 \
+	man8/chgpasswd.8 \
+	man8/chpasswd.8 \
+	man1/chsh.1 \
+	man1/expiry.1 \
+	man5/faillog.5 \
+	man8/faillog.8 \
+	man3/getspnam.3 \
+	man1/gpasswd.1 \
+	man8/groupadd.8 \
+	man8/groupdel.8 \
+	man8/groupmems.8 \
+	man8/groupmod.8 \
+	man1/groups.1 \
+	man8/grpck.8 \
+	man8/grpconv.8 \
+	man8/grpunconv.8 \
+	man5/gshadow.5 \
+	man8/lastlog.8 \
+	man1/login.1 \
+	man5/login.defs.5 \
+	man8/logoutd.8 \
+	man1/newgrp.1 \
+	man8/newusers.8 \
+	man8/nologin.8 \
+	man1/passwd.1 \
+	man5/passwd.5 \
+	man8/pwck.8 \
+	man8/pwconv.8 \
+	man8/pwunconv.8 \
+	man1/sg.1 \
+	man3/shadow.3 \
+	man5/shadow.5 \
+	man1/su.1 \
+	man5/suauth.5 \
+	man8/useradd.8 \
+	man8/userdel.8 \
+	man8/usermod.8 \
+	man8/vigr.8 \
+	man8/vipw.8
+
+man_nopam = \
+	man5/limits.5 \
+	man5/login.access.5 \
+	man5/porttime.5
+
+if !USE_PAM
+man_MANS += $(man_nopam)
+endif
+
+EXTRA_DIST = \
+	$(man_MANS) \
+	man1/id.1 \
+	man8/sulogin.8
+
+if USE_PAM
+EXTRA_DIST += $(man_nopam)
+endif
+
+include ../generate_translations.mak
+
diff --git a/man/zh_CN/Makefile.in b/man/zh_CN/Makefile.in
new file mode 100644
index 0000000..432a593
--- /dev/null
+++ b/man/zh_CN/Makefile.in
@@ -0,0 +1,773 @@
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+	man3/getspnam.3 man1/gpasswd.1 man8/groupadd.8 man8/groupdel.8 \
+	man8/groupmems.8 man8/groupmod.8 man1/groups.1 man8/grpck.8 \
+	man8/grpconv.8 man8/grpunconv.8 man5/gshadow.5 man8/lastlog.8 \
+	man1/login.1 man5/login.defs.5 man8/logoutd.8 man1/newgrp.1 \
+	man8/newusers.8 man8/nologin.8 man1/passwd.1 man5/passwd.5 \
+	man8/pwck.8 man8/pwconv.8 man8/pwunconv.8 man1/sg.1 \
+	man3/shadow.3 man5/shadow.5 man1/su.1 man5/suauth.5 \
+	man8/useradd.8 man8/userdel.8 man8/usermod.8 man8/vigr.8 \
+	man8/vipw.8 $(am__append_1)
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+	man5/limits.5 \
+	man5/login.access.5 \
+	man5/porttime.5
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diff --git a/man/zh_CN/man1/chage.1 b/man/zh_CN/man1/chage.1
new file mode 100644
index 0000000..0eae23d
--- /dev/null
+++ b/man/zh_CN/man1/chage.1
@@ -0,0 +1,189 @@
+'\" t
+.\"     Title: chage
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 用户命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "CHAGE" "1" "2020-01-23" "shadow\-utils 4\&.8\&.1" "用户命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+chage \- 更改用户密码过期信息
+.SH "大纲"
+.HP \w'\fBchage\fR\ 'u
+\fBchage\fR [\fI选项\fR] \fI登录\fR
+.SH "描述"
+.PP
+The
+\fBchage\fR
+command changes the number of days between password changes and the date of the last password change\&. This information is used by the system to determine when a user must change their password\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBchage\fR
+command are:
+.PP
+\fB\-d\fR, \fB\-\-lastday\fR\ \&\fILAST_DAY\fR
+.RS 4
+Set the number of days since January 1st, 1970 when the password was last changed\&. The date may also be expressed in the format YYYY\-MM\-DD (or the format more commonly used in your area)\&.
+.RE
+.PP
+\fB\-E\fR, \fB\-\-expiredate\fR\ \&\fIEXPIRE_DATE\fR
+.RS 4
+Set the date or number of days since January 1, 1970 on which the user\*(Aqs account will no longer be accessible\&. The date may also be expressed in the format YYYY\-MM\-DD (or the format more commonly used in your area)\&. A user whose account is locked must contact the system administrator before being able to use the system again\&.
+.sp
+Passing the number
+\fI\-1\fR
+as the
+\fIEXPIRE_DATE\fR
+will remove an account expiration date\&.
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-i\fR, \fB\-\-iso8601\fR
+.RS 4
+When printing dates, use YYYY\-MM\-DD format\&.
+.RE
+.PP
+\fB\-I\fR, \fB\-\-inactive\fR\ \&\fIINACTIVE\fR
+.RS 4
+Set the number of days of inactivity after a password has expired before the account is locked\&. The
+\fIINACTIVE\fR
+option is the number of days of inactivity\&. A user whose account is locked must contact the system administrator before being able to use the system again\&.
+.sp
+Passing the number
+\fI\-1\fR
+as the
+\fIINACTIVE\fR
+will remove an account\*(Aqs inactivity\&.
+.RE
+.PP
+\fB\-l\fR, \fB\-\-list\fR
+.RS 4
+现实账户年龄信息。
+.RE
+.PP
+\fB\-m\fR, \fB\-\-mindays\fR\ \&\fIMIN_DAYS\fR
+.RS 4
+Set the minimum number of days between password changes to
+\fIMIN_DAYS\fR\&. A value of zero for this field indicates that the user may change their password at any time\&.
+.RE
+.PP
+\fB\-M\fR, \fB\-\-maxdays\fR\ \&\fIMAX_DAYS\fR
+.RS 4
+Set the maximum number of days during which a password is valid\&. When
+\fIMAX_DAYS\fR
+plus
+\fILAST_DAY\fR
+is less than the current day, the user will be required to change their password before being able to use their account\&. This occurrence can be planned for in advance by use of the
+\fB\-W\fR
+option, which provides the user with advance warning\&.
+.sp
+Passing the number
+\fI\-1\fR
+as
+\fIMAX_DAYS\fR
+will remove checking a password\*(Aqs validity\&.
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-W\fR, \fB\-\-warndays\fR\ \&\fIWARN_DAYS\fR
+.RS 4
+Set the number of days of warning before a password change is required\&. The
+\fIWARN_DAYS\fR
+option is the number of days prior to the password expiring that a user will be warned their password is about to expire\&.
+.RE
+.PP
+If none of the options are selected,
+\fBchage\fR
+operates in an interactive fashion, prompting the user with the current values for all of the fields\&. Enter the new value to change the field, or leave the line blank to use the current value\&. The current value is displayed between a pair of
+\fI[ ]\fR
+marks\&.
+.SH "注意"
+.PP
+The
+\fBchage\fR
+program requires a shadow password file to be available\&.
+.PP
+The
+\fBchage\fR
+command is restricted to the root user, except for the
+\fB\-l\fR
+option, which may be used by an unprivileged user to determine when their password or account is due to expire\&.
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.SH "退出值"
+.PP
+The
+\fBchage\fR
+command exits with the following values:
+.PP
+\fI0\fR
+.RS 4
+success
+.RE
+.PP
+\fI1\fR
+.RS 4
+permission denied
+.RE
+.PP
+\fI2\fR
+.RS 4
+invalid command syntax
+.RE
+.PP
+\fI15\fR
+.RS 4
+can\*(Aqt find the shadow password file
+.RE
+.SH "参见"
+.PP
+\fBpasswd\fR(5),
+\fBshadow\fR(5)\&.
diff --git a/man/zh_CN/man1/chfn.1 b/man/zh_CN/man1/chfn.1
new file mode 100644
index 0000000..c0a2f2e
--- /dev/null
+++ b/man/zh_CN/man1/chfn.1
@@ -0,0 +1,163 @@
+'\" t
+.\"     Title: chfn
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 用户命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "CHFN" "1" "2020-01-23" "shadow\-utils 4\&.8\&.1" "用户命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+chfn \- 更改真名和信息
+.SH "大纲"
+.HP \w'\fBchfn\fR\ 'u
+\fBchfn\fR [\fI选项\fR] [\fI登录\fR]
+.SH "描述"
+.PP
+The
+\fBchfn\fR
+command changes user fullname, office room number, office phone number, and home phone number information for a user\*(Aqs account\&. This information is typically printed by
+\fBfinger\fR(1)
+and similar programs\&. A normal user may only change the fields for her own account, subject to the restrictions in
+/etc/login\&.defs\&. (The default configuration is to prevent users from changing their fullname\&.) The superuser may change any field for any account\&. Additionally, only the superuser may use the
+\fB\-o\fR
+option to change the undefined portions of the GECOS field\&.
+.PP
+These fields must not contain any colons\&. Except for the
+\fIother\fR
+field, they should not contain any comma or equal sign\&. It is also recommended to avoid non\-US\-ASCII characters, but this is only enforced for the phone numbers\&. The
+\fIother\fR
+field is used to store accounting information used by other applications\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBchfn\fR
+command are:
+.PP
+\fB\-f\fR, \fB\-\-full\-name\fR\ \&\fIFULL_NAME\fR
+.RS 4
+更改用户的全名
+.RE
+.PP
+\fB\-h\fR, \fB\-\-home\-phone\fR\ \&\fIHOME_PHONE\fR
+.RS 4
+Change the user\*(Aqs home phone number\&.
+.RE
+.PP
+\fB\-o\fR, \fB\-\-other\fR\ \&\fIOTHER\fR
+.RS 4
+Change the user\*(Aqs other GECOS information\&. This field is used to store accounting information used by other applications, and can be changed only by a superuser\&.
+.RE
+.PP
+\fB\-r\fR, \fB\-\-room\fR\ \&\fIROOM_NUMBER\fR
+.RS 4
+Change the user\*(Aqs room number\&.
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-u\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-w\fR, \fB\-\-work\-phone\fR\ \&\fIWORK_PHONE\fR
+.RS 4
+Change the user\*(Aqs office phone number\&.
+.RE
+.PP
+If none of the options are selected,
+\fBchfn\fR
+operates in an interactive fashion, prompting the user with the current values for all of the fields\&. Enter the new value to change the field, or leave the line blank to use the current value\&. The current value is displayed between a pair of
+\fB[ ]\fR
+marks\&. Without options,
+\fBchfn\fR
+prompts for the current user account\&.
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBCHFN_AUTH\fR (boolean)
+.RS 4
+If
+\fIyes\fR, the
+\fBchfn\fR
+program will require authentication before making any changes, unless run by the superuser\&.
+.RE
+.PP
+\fBCHFN_RESTRICT\fR (string)
+.RS 4
+This parameter specifies which values in the
+\fIgecos\fR
+field of the
+/etc/passwd
+file may be changed by regular users using the
+\fBchfn\fR
+program\&. It can be any combination of letters
+\fIf\fR,
+\fIr\fR,
+\fIw\fR,
+\fIh\fR, for Full name, Room number, Work phone, and Home phone, respectively\&. For backward compatibility,
+\fIyes\fR
+is equivalent to
+\fIrwh\fR
+and
+\fIno\fR
+is equivalent to
+\fIfrwh\fR\&. If not specified, only the superuser can make any changes\&. The most restrictive setting is better achieved by not installing
+\fBchfn\fR
+SUID\&.
+.RE
+.PP
+\fBLOGIN_STRING\fR (string)
+.RS 4
+此字符串用于提示输入密码。默认是 "Password: "，或者翻译了的结果(汉语中翻译为了\(lq密码：\(rq)。如果设置了此变量，提示不会被翻译。
+.sp
+If the string contains
+\fI%s\fR, this will be replaced by the user\*(Aqs name\&.
+.RE
+.SH "文件"
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.SH "参见"
+.PP
+\fBchsh\fR(1),
+\fBlogin.defs\fR(5),
+\fBpasswd\fR(5)\&.
diff --git a/man/zh_CN/man1/chsh.1 b/man/zh_CN/man1/chsh.1
new file mode 100644
index 0000000..e9147a7
--- /dev/null
+++ b/man/zh_CN/man1/chsh.1
@@ -0,0 +1,121 @@
+'\" t
+.\"     Title: chsh
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 用户命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "CHSH" "1" "2020-01-23" "shadow\-utils 4\&.8\&.1" "用户命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+chsh \- 更改登录 shell
+.SH "大纲"
+.HP \w'\fBchsh\fR\ 'u
+\fBchsh\fR [\fI选项\fR] [\fI登录\fR]
+.SH "描述"
+.PP
+The
+\fBchsh\fR
+command changes the user login shell\&. This determines the name of the user\*(Aqs initial login command\&. A normal user may only change the login shell for her own account; the superuser may change the login shell for any account\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBchsh\fR
+command are:
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-s\fR, \fB\-\-shell\fR\ \&\fISHELL\fR
+.RS 4
+用户的新登录 shell 的名称。将此字段设置为空会让系统选择默认的登录 shell。
+.RE
+.PP
+If the
+\fB\-s\fR
+option is not selected,
+\fBchsh\fR
+operates in an interactive fashion, prompting the user with the current login shell\&. Enter the new value to change the shell, or leave the line blank to use the current one\&. The current shell is displayed between a pair of
+\fI[ ]\fR
+marks\&.
+.SH "注意"
+.PP
+The only restriction placed on the login shell is that the command name must be listed in
+/etc/shells, unless the invoker is the superuser, and then any value may be added\&. An account with a restricted login shell may not change her login shell\&. For this reason, placing
+/bin/rsh
+in
+/etc/shells
+is discouraged since accidentally changing to a restricted shell would prevent the user from ever changing her login shell back to its original value\&.
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBCHSH_AUTH\fR (boolean)
+.RS 4
+If
+\fIyes\fR, the
+\fBchsh\fR
+program will require authentication before making any changes, unless run by the superuser\&.
+.RE
+.PP
+\fBLOGIN_STRING\fR (string)
+.RS 4
+此字符串用于提示输入密码。默认是 "Password: "，或者翻译了的结果(汉语中翻译为了\(lq密码：\(rq)。如果设置了此变量，提示不会被翻译。
+.sp
+If the string contains
+\fI%s\fR, this will be replaced by the user\*(Aqs name\&.
+.RE
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shells
+.RS 4
+可用的登录 shell 的列表。
+.RE
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.SH "参见"
+.PP
+\fBchfn\fR(1),
+\fBlogin.defs\fR(5),
+\fBpasswd\fR(5)\&.
diff --git a/man/zh_CN/man1/expiry.1 b/man/zh_CN/man1/expiry.1
new file mode 100644
index 0000000..afd3255
--- /dev/null
+++ b/man/zh_CN/man1/expiry.1
@@ -0,0 +1,74 @@
+'\" t
+.\"     Title: expiry
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 用户命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "EXPIRY" "1" "2020-01-23" "shadow\-utils 4\&.8\&.1" "用户命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+expiry \- check and enforce password expiration policy
+.SH "大纲"
+.HP \w'\fBexpiry\fR\ 'u
+\fBexpiry\fR \fI选项\fR
+.SH "描述"
+.PP
+The
+\fBexpiry\fR
+command checks (\fB\-c\fR) the current password expiration and forces (\fB\-f\fR) changes when required\&. It is callable as a normal user command\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBexpiry\fR
+command are:
+.PP
+\fB\-c\fR, \fB\-\-check\fR
+.RS 4
+Check the password expiration of the current user\&.
+.RE
+.PP
+\fB\-f\fR, \fB\-\-force\fR
+.RS 4
+如果用户密码过期，则强制用户修改密码。
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.SH "参见"
+.PP
+\fBpasswd\fR(5),
+\fBshadow\fR(5)\&.
diff --git a/man/zh_CN/man1/gpasswd.1 b/man/zh_CN/man1/gpasswd.1
new file mode 100644
index 0000000..3b4f351
--- /dev/null
+++ b/man/zh_CN/man1/gpasswd.1
@@ -0,0 +1,232 @@
+'\" t
+.\"     Title: gpasswd
+.\"    Author: Rafal Maszkowski
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 用户命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "GPASSWD" "1" "2020-01-23" "shadow\-utils 4\&.8\&.1" "用户命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+gpasswd \- administer /etc/group and /etc/gshadow
+.SH "大纲"
+.HP \w'\fBgpasswd\fR\ 'u
+\fBgpasswd\fR [\fI选项\fR] \fIgroup\fR
+.SH "描述"
+.PP
+The
+\fBgpasswd\fR
+command is used to administer
+/etc/group, and /etc/gshadow\&. Every group can have
+administrators,
+members and a password\&.
+.PP
+System administrators can use the
+\fB\-A\fR
+option to define group administrator(s) and the
+\fB\-M\fR
+option to define members\&. They have all rights of group administrators and members\&.
+.PP
+\fBgpasswd\fR
+called by
+a group administrator
+with a group name only prompts for the new password of the
+\fIgroup\fR\&.
+.PP
+If a password is set the members can still use
+\fBnewgrp\fR(1)
+without a password, and non\-members must supply the password\&.
+.SS "请注意组密码"
+.PP
+Group passwords are an inherent security problem since more than one person is permitted to know the password\&. However, groups are a useful tool for permitting co\-operation between different users\&.
+.SH "选项"
+.PP
+Except for the
+\fB\-A\fR
+and
+\fB\-M\fR
+options, the options cannot be combined\&.
+.PP
+The options which apply to the
+\fBgpasswd\fR
+command are:
+.PP
+\fB\-a\fR, \fB\-\-add\fR\ \&\fIuser\fR
+.RS 4
+Add the
+\fIuser\fR
+to the named
+\fIgroup\fR\&.
+.RE
+.PP
+\fB\-d\fR, \fB\-\-delete\fR\ \&\fIuser\fR
+.RS 4
+Remove the
+\fIuser\fR
+from the named
+\fIgroup\fR\&.
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-Q\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-r\fR, \fB\-\-remove\-password\fR
+.RS 4
+Remove the password from the named
+\fIgroup\fR\&. The group password will be empty\&. Only group members will be allowed to use
+\fBnewgrp\fR
+to join the named
+\fIgroup\fR\&.
+.RE
+.PP
+\fB\-R\fR, \fB\-\-restrict\fR
+.RS 4
+Restrict the access to the named
+\fIgroup\fR\&. The group password is set to "!"\&. Only group members with a password will be allowed to use
+\fBnewgrp\fR
+to join the named
+\fIgroup\fR\&.
+.RE
+.PP
+\fB\-A\fR, \fB\-\-administrators\fR\ \&\fIuser\fR,\&.\&.\&.
+.RS 4
+设置有管理权限的用户列表。
+.RE
+.PP
+\fB\-M\fR, \fB\-\-members\fR\ \&\fIuser\fR,\&.\&.\&.
+.RS 4
+设置组成员列表。
+.RE
+.SH "CAVEATS"
+.PP
+This tool only operates on the
+/etc/group
+and /etc/gshadow files\&.
+Thus you cannot change any NIS or LDAP group\&. This must be performed on the corresponding server\&.
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBENCRYPT_METHOD\fR (string)
+.RS 4
+这定义了系统加密密码的默认算法(如果没有在命令行上指定算法)。
+.sp
+It can take one of these values:
+\fIDES\fR
+(default),
+\fIMD5\fR, \fISHA256\fR, \fISHA512\fR\&.
+.sp
+Note: this parameter overrides the
+\fBMD5_CRYPT_ENAB\fR
+variable\&.
+.RE
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.PP
+\fBMD5_CRYPT_ENAB\fR (boolean)
+.RS 4
+Indicate if passwords must be encrypted using the MD5\-based algorithm\&. If set to
+\fIyes\fR, new passwords will be encrypted using the MD5\-based algorithm compatible with the one used by recent releases of FreeBSD\&. It supports passwords of unlimited length and longer salt strings\&. Set to
+\fIno\fR
+if you need to copy encrypted passwords to other systems which don\*(Aqt understand the new algorithm\&. Default is
+\fIno\fR\&.
+.sp
+This variable is superseded by the
+\fBENCRYPT_METHOD\fR
+variable or by any command line option used to configure the encryption algorithm\&.
+.sp
+This variable is deprecated\&. You should use
+\fBENCRYPT_METHOD\fR\&.
+.RE
+.PP
+\fBSHA_CRYPT_MIN_ROUNDS\fR (number), \fBSHA_CRYPT_MAX_ROUNDS\fR (number)
+.RS 4
+When
+\fBENCRYPT_METHOD\fR
+is set to
+\fISHA256\fR
+or
+\fISHA512\fR, this defines the number of SHA rounds used by the encryption algorithm by default (when the number of rounds is not specified on the command line)\&.
+.sp
+使用很多轮转，会让暴力破解更加困难。但是需要注意，认证用户时也会需要更多的 CPU 资源。
+.sp
+如果没有指定，libc 会选择默认的轮转数(5000)。
+.sp
+值必须在 1000 \- 999,999,999 之间。
+.sp
+If only one of the
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+or
+\fBSHA_CRYPT_MAX_ROUNDS\fR
+values is set, then this value will be used\&.
+.sp
+If
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+>
+\fBSHA_CRYPT_MAX_ROUNDS\fR, the highest value will be used\&.
+.RE
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.SH "参见"
+.PP
+\fBnewgrp\fR(1),
+\fBgroupadd\fR(8),
+\fBgroupdel\fR(8),
+\fBgroupmod\fR(8),
+\fBgrpck\fR(8),
+\fBgroup\fR(5), \fBgshadow\fR(5)\&.
diff --git a/man/zh_CN/man1/groups.1 b/man/zh_CN/man1/groups.1
new file mode 100644
index 0000000..4b7982a
--- /dev/null
+++ b/man/zh_CN/man1/groups.1
@@ -0,0 +1,64 @@
+'\" t
+.\"     Title: groups
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 用户命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "GROUPS" "1" "2020-01-23" "shadow\-utils 4\&.8\&.1" "用户命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+groups \- 现实当前组名
+.SH "大纲"
+.HP \w'\fBgroups\fR\ 'u
+\fBgroups\fR [\fI用户\fR]
+.SH "描述"
+.PP
+The
+\fBgroups\fR
+command displays the current group names or ID values\&. If the value does not have a corresponding entry in
+/etc/group, the value will be displayed as the numerical group value\&. The optional
+\fIuser\fR
+parameter will display the groups for the named
+\fIuser\fR\&.
+.SH "注意"
+.PP
+Systems which do not support concurrent group sets will have the information from
+/etc/group
+reported\&. The user must use
+\fBnewgrp\fR
+or
+\fBsg\fR
+to change his current real and effective group ID\&.
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.SH "参见"
+.PP
+\fBnewgrp\fR(1),
+\fBgetgid\fR(2),
+\fBgetgroups\fR(2),
+\fBgetuid\fR(2)\&.
diff --git a/man/zh_CN/man1/id.1 b/man/zh_CN/man1/id.1
new file mode 100644
index 0000000..637c0d5
--- /dev/null
+++ b/man/zh_CN/man1/id.1
@@ -0,0 +1,60 @@
+'\" t
+.\"     Title: id
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 用户命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "ID" "1" "2020-01-23" "shadow\-utils 4\&.8\&.1" "用户命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+id \- display current user and group ID names
+.SH "大纲"
+.HP \w'\fBid\fR\ 'u
+\fBid\fR [\-a]
+.SH "描述"
+.PP
+The
+\fBid\fR
+command displays the current real and effective user and group ID names or values\&. If the value does not have a corresponding entry in
+/etc/passwd
+or
+/etc/group, the value will be displayed without the corresponding name\&. The optional
+\fB\-a\fR
+flag will display the group set on systems which support multiple concurrent group membership\&.
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.SH "参见"
+.PP
+\fBgetgid\fR(2),
+\fBgetgroups\fR(2),
+\fBgetuid\fR(2)
diff --git a/man/zh_CN/man1/login.1 b/man/zh_CN/man1/login.1
new file mode 100644
index 0000000..7ecfde7
--- /dev/null
+++ b/man/zh_CN/man1/login.1
@@ -0,0 +1,487 @@
+'\" t
+.\"     Title: login
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 用户命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "LOGIN" "1" "2020-01-23" "shadow\-utils 4\&.8\&.1" "用户命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+login \- 在系统上启动回话
+.SH "大纲"
+.HP \w'\fBlogin\fR\ 'u
+\fBlogin\fR [\-p] [\-h\ \fIhost\fR] [\fI用户名\fR] [\fIENV=VAR\fR...]
+.HP \w'\fBlogin\fR\ 'u
+\fBlogin\fR [\-p] [\-h\ \fIhost\fR] \-f \fI用户名\fR
+.HP \w'\fBlogin\fR\ 'u
+\fBlogin\fR [\-p] \-r\ \fIhost\fR
+.SH "描述"
+.PP
+The
+\fBlogin\fR
+program is used to establish a new session with the system\&. It is normally invoked automatically by responding to the
+\fIlogin:\fR
+prompt on the user\*(Aqs terminal\&.
+\fBlogin\fR
+may be special to the shell and may not be invoked as a sub\-process\&. When called from a shell,
+\fBlogin\fR
+should be executed as
+\fBexec login\fR
+which will cause the user to exit from the current shell (and thus will prevent the new logged in user to return to the session of the caller)\&. Attempting to execute
+\fBlogin\fR
+from any shell but the login shell will produce an error message\&.
+.PP
+The user is then prompted for a password, where appropriate\&. Echoing is disabled to prevent revealing the password\&. Only a small number of password failures are permitted before
+\fBlogin\fR
+exits and the communications link is severed\&.
+.PP
+If password aging has been enabled for your account, you may be prompted for a new password before proceeding\&. You will be forced to provide your old password and the new password before continuing\&. Please refer to
+\fBpasswd\fR(1)
+for more information\&.
+.PP
+After a successful login, you will be informed of any system messages and the presence of mail\&. You may turn off the printing of the system message file,
+/etc/motd, by creating a zero\-length file
+\&.hushlogin
+in your login directory\&. The mail message will be one of "\fIYou have new mail\&.\fR", "\fIYou have mail\&.\fR", or "\fINo Mail\&.\fR" according to the condition of your mailbox\&.
+.PP
+Your user and group ID will be set according to their values in the
+/etc/passwd
+file\&. The value for
+\fB$HOME\fR,
+\fB$SHELL\fR,
+\fB$PATH\fR,
+\fB$LOGNAME\fR, and
+\fB$MAIL\fR
+are set according to the appropriate fields in the password entry\&. Ulimit, umask and nice values may also be set according to entries in the GECOS field\&.
+.PP
+On some installations, the environmental variable
+\fB$TERM\fR
+will be initialized to the terminal type on your tty line, as specified in
+/etc/ttytype\&.
+.PP
+命令解释器的初始化脚本也可能执行。请参考手册中相应的章节来获取关于此功能的更多信息。
+.PP
+在登录 shell 中以第一个字符是\(lq*\(rq标注的是子系统登录。给定的主目录将被用于用户实际登录的新文件系统的根。
+.PP
+The
+\fBlogin\fR
+program is NOT responsible for removing users from the utmp file\&. It is the responsibility of
+\fBgetty\fR(8)
+and
+\fBinit\fR(8)
+to clean up apparent ownership of a terminal session\&. If you use
+\fBlogin\fR
+from the shell prompt without
+\fBexec\fR, the user you use will continue to appear to be logged in even after you log out of the "subsession"\&.
+.SH "选项"
+.PP
+\fB\-f\fR
+.RS 4
+不要执行认证，用户已经预认证过。
+.sp
+Note: In that case,
+\fIusername\fR
+is mandatory\&.
+.RE
+.PP
+\fB\-h\fR
+.RS 4
+此登录的远程主机名。
+.RE
+.PP
+\fB\-p\fR
+.RS 4
+保留环境。
+.RE
+.PP
+\fB\-r\fR
+.RS 4
+为 rlogin (远程登录)执行 autologin (自动登录)协议。
+.RE
+.PP
+The
+\fB\-r\fR,
+\fB\-h\fR
+and
+\fB\-f\fR
+options are only used when
+\fBlogin\fR
+is invoked by root\&.
+.SH "CAVEATS"
+.PP
+This version of
+\fBlogin\fR
+has many compilation options, only some of which may be in use at any particular site\&.
+.PP
+文件的位置由系统配置决定。
+.PP
+The
+\fBlogin\fR
+program is NOT responsible for removing users from the utmp file\&. It is the responsibility of
+\fBgetty\fR(8)
+and
+\fBinit\fR(8)
+to clean up apparent ownership of a terminal session\&. If you use
+\fBlogin\fR
+from the shell prompt without
+\fBexec\fR, the user you use will continue to appear to be logged in even after you log out of the "subsession"\&.
+.PP
+As with any program,
+\fBlogin\fR\*(Aqs appearance can be faked\&. If non\-trusted users have physical access to a machine, an attacker could use this to obtain the password of the next person coming to sit in front of the machine\&. Under Linux, the SAK mechanism can be used by users to initiate a trusted path and prevent this kind of attack\&.
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBCONSOLE\fR (string)
+.RS 4
+如果定义了，或者是包含设备名(没行一个)的文件的完整路径名，或者是\(lq:\(rq分隔的设备名列表。将只会在这写设备上允许 root 登录。
+.sp
+如果没有定义，可以在任何设备上使用 root。
+.sp
+指定的设备时不带 /dev/ 前缀。
+.RE
+.PP
+\fBCONSOLE_GROUPS\fR (string)
+.RS 4
+List of groups to add to the user\*(Aqs supplementary groups set when logging in on the console (as determined by the CONSOLE setting)\&. Default is none\&.
+
+Use with caution \- it is possible for users to gain permanent access to these groups, even when not logged in on the console\&.
+.RE
+.PP
+\fBDEFAULT_HOME\fR (boolean)
+.RS 4
+如果不能 cd 到主目录时，说明是否允许登录。默认是否。
+.sp
+If set to
+\fIyes\fR, the user will login in the root (/) directory if it is not possible to cd to her home directory\&.
+.RE
+.PP
+\fBENV_HZ\fR (string)
+.RS 4
+If set, it will be used to define the HZ environment variable when a user login\&. The value must be preceded by
+\fIHZ=\fR\&. A common value on Linux is
+\fIHZ=100\fR\&.
+.RE
+.PP
+\fBENV_PATH\fR (string)
+.RS 4
+If set, it will be used to define the PATH environment variable when a regular user login\&. The value is a colon separated list of paths (for example
+\fI/bin:/usr/bin\fR) and can be preceded by
+\fIPATH=\fR\&. The default value is
+\fIPATH=/bin:/usr/bin\fR\&.
+.RE
+.PP
+\fBENV_SUPATH\fR (string)
+.RS 4
+If set, it will be used to define the PATH environment variable when the superuser login\&. The value is a colon separated list of paths (for example
+\fI/sbin:/bin:/usr/sbin:/usr/bin\fR) and can be preceded by
+\fIPATH=\fR\&. The default value is
+\fIPATH=/sbin:/bin:/usr/sbin:/usr/bin\fR\&.
+.RE
+.PP
+\fBENV_TZ\fR (string)
+.RS 4
+If set, it will be used to define the TZ environment variable when a user login\&. The value can be the name of a timezone preceded by
+\fITZ=\fR
+(for example
+\fITZ=CST6CDT\fR), or the full path to the file containing the timezone specification (for example
+/etc/tzname)\&.
+.sp
+If a full path is specified but the file does not exist or cannot be read, the default is to use
+\fITZ=CST6CDT\fR\&.
+.RE
+.PP
+\fBENVIRON_FILE\fR (string)
+.RS 4
+如果此文件存在，并且可读，将会从中读取登录环境。所有行都必须是 name=value 的格式。
+.sp
+以 # 开头的行将视为注释，并被忽略。
+.RE
+.PP
+\fBERASECHAR\fR (number)
+.RS 4
+Terminal ERASE character (\fI010\fR
+= backspace,
+\fI0177\fR
+= DEL)\&.
+.sp
+此值可以使用前缀\(lq0\(rq表示八进制，\(lq0x\(rq表示十六进制。
+.RE
+.PP
+\fBFAIL_DELAY\fR (number)
+.RS 4
+登录失败后，等待多少秒才再允许登录。
+.RE
+.PP
+\fBFAILLOG_ENAB\fR (boolean)
+.RS 4
+Enable logging and display of
+/var/log/faillog
+login failure info\&.
+.RE
+.PP
+\fBFAKE_SHELL\fR (string)
+.RS 4
+If set,
+\fBlogin\fR
+will execute this shell instead of the users\*(Aq shell specified in
+/etc/passwd\&.
+.RE
+.PP
+\fBFTMP_FILE\fR (string)
+.RS 4
+如果定义，登录失败会以 utmp 格式记录在此文件中。
+.RE
+.PP
+\fBHUSHLOGIN_FILE\fR (string)
+.RS 4
+If defined, this file can inhibit all the usual chatter during the login sequence\&. If a full pathname is specified, then hushed mode will be enabled if the user\*(Aqs name or shell are found in the file\&. If not a full pathname, then hushed mode will be enabled if the file exists in the user\*(Aqs home directory\&.
+.RE
+.PP
+\fBISSUE_FILE\fR (string)
+.RS 4
+如果定义了，此文件将在每次的登录提示之前现实。
+.RE
+.PP
+\fBKILLCHAR\fR (number)
+.RS 4
+Terminal KILL character (\fI025\fR
+= CTRL/U)\&.
+.sp
+此值可以使用前缀\(lq0\(rq表示八进制，\(lq0x\(rq表示十六进制。
+.RE
+.PP
+\fBLASTLOG_ENAB\fR (boolean)
+.RS 4
+允许记录和显示 /var/log/lastlog 登录时间信息。
+.RE
+.PP
+\fBLOGIN_RETRIES\fR (number)
+.RS 4
+密码错误时，重试的最大次数。
+.RE
+.PP
+\fBLOGIN_STRING\fR (string)
+.RS 4
+此字符串用于提示输入密码。默认是 "Password: "，或者翻译了的结果(汉语中翻译为了\(lq密码：\(rq)。如果设置了此变量，提示不会被翻译。
+.sp
+If the string contains
+\fI%s\fR, this will be replaced by the user\*(Aqs name\&.
+.RE
+.PP
+\fBLOGIN_TIMEOUT\fR (number)
+.RS 4
+最大登录时间(以秒为单位)。
+.RE
+.PP
+\fBLOG_OK_LOGINS\fR (boolean)
+.RS 4
+允许记录成功登录。
+.RE
+.PP
+\fBLOG_UNKFAIL_ENAB\fR (boolean)
+.RS 4
+在记录到登录失败时，允许记录未知用户名。
+.sp
+注意：如果用户不小心将密码输入到了登录名中，记录未知用户名可能是一个安全隐患。
+.RE
+.PP
+\fBMAIL_CHECK_ENAB\fR (boolean)
+.RS 4
+启用登录时检查和现实邮箱状态。
+.sp
+如果 shell 的启动文件已经检查了邮件("mailx \-e" 或者其它同功能的工具)，您应该禁用它。
+.RE
+.PP
+\fBMAIL_DIR\fR (string)
+.RS 4
+邮箱目录。修改或删除用户账户时需要处理邮箱，如果没有指定，将使用编译时指定的默认值。
+.RE
+.PP
+\fBMAIL_FILE\fR (string)
+.RS 4
+定义用户邮箱文件的位置(相对于主目录)。
+.RE
+.PP
+The
+\fBMAIL_DIR\fR
+and
+\fBMAIL_FILE\fR
+variables are used by
+\fBuseradd\fR,
+\fBusermod\fR, and
+\fBuserdel\fR
+to create, move, or delete the user\*(Aqs mail spool\&.
+.PP
+If
+\fBMAIL_CHECK_ENAB\fR
+is set to
+\fIyes\fR, they are also used to define the
+\fBMAIL\fR
+environment variable\&.
+.PP
+\fBMOTD_FILE\fR (string)
+.RS 4
+If defined, ":" delimited list of "message of the day" files to be displayed upon login\&.
+.RE
+.PP
+\fBNOLOGINS_FILE\fR (string)
+.RS 4
+If defined, name of file whose presence will inhibit non\-root logins\&. The contents of this file should be a message indicating why logins are inhibited\&.
+.RE
+.PP
+\fBPORTTIME_CHECKS_ENAB\fR (boolean)
+.RS 4
+Enable checking of time restrictions specified in
+/etc/porttime\&.
+.RE
+.PP
+\fBQUOTAS_ENAB\fR (boolean)
+.RS 4
+Enable setting of resource limits from
+/etc/limits
+and ulimit, umask, and niceness from the user\*(Aqs passwd gecos field\&.
+.RE
+.PP
+\fBTTYGROUP\fR (string), \fBTTYPERM\fR (string)
+.RS 4
+The terminal permissions: the login tty will be owned by the
+\fBTTYGROUP\fR
+group, and the permissions will be set to
+\fBTTYPERM\fR\&.
+.sp
+By default, the ownership of the terminal is set to the user\*(Aqs primary group and the permissions are set to
+\fI0600\fR\&.
+.sp
+\fBTTYGROUP\fR
+can be either the name of a group or a numeric group identifier\&.
+.sp
+If you have a
+\fBwrite\fR
+program which is "setgid" to a special group which owns the terminals, define TTYGROUP to the group number and TTYPERM to 0620\&. Otherwise leave TTYGROUP commented out and assign TTYPERM to either 622 or 600\&.
+.RE
+.PP
+\fBTTYTYPE_FILE\fR (string)
+.RS 4
+If defined, file which maps tty line to TERM environment parameter\&. Each line of the file is in a format something like "vt100 tty01"\&.
+.RE
+.PP
+\fBULIMIT\fR (number)
+.RS 4
+Default
+\fBulimit\fR
+value\&.
+.RE
+.PP
+\fBUMASK\fR (number)
+.RS 4
+文件模式创建掩码初始化为此值。如果没有指定，掩码初始化为 022。
+.sp
+\fBuseradd\fR
+and
+\fBnewusers\fR
+use this mask to set the mode of the home directory they create if
+\fBHOME_MODE\fR
+is not set\&.
+.sp
+It is also used by
+\fBlogin\fR
+to define users\*(Aq initial umask\&. Note that this mask can be overridden by the user\*(Aqs GECOS line (if
+\fBQUOTAS_ENAB\fR
+is set) or by the specification of a limit with the
+\fIK\fR
+identifier in
+\fBlimits\fR(5)\&.
+.RE
+.PP
+\fBUSERGROUPS_ENAB\fR (boolean)
+.RS 4
+如果 uid 和 gid 相同，用户名和主用户名也相同，使非 root 组的组掩码位和属主位相同 (如：022 \-> 002, 077 \-> 007)。
+.sp
+If set to
+\fIyes\fR,
+\fBuserdel\fR
+will remove the user\*(Aqs group if it contains no more members, and
+\fBuseradd\fR
+will create by default a group with the name of the user\&.
+.RE
+.SH "文件"
+.PP
+/var/run/utmp
+.RS 4
+当前登录会话的列表。
+.RE
+.PP
+/var/log/wtmp
+.RS 4
+先前的登录会话列表。
+.RE
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.PP
+/etc/motd
+.RS 4
+System message of the day file\&.
+.RE
+.PP
+/etc/nologin
+.RS 4
+阻止非 root 用户登录。
+.RE
+.PP
+/etc/ttytype
+.RS 4
+终端类型列表。
+.RE
+.PP
+$HOME/\&.hushlogin
+.RS 4
+阻止现实系统信息。
+.RE
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.SH "参见"
+.PP
+\fBmail\fR(1),
+\fBpasswd\fR(1),
+\fBsh\fR(1),
+\fBsu\fR(1),
+\fBlogin.defs\fR(5),
+\fBnologin\fR(5),
+\fBpasswd\fR(5),
+\fBsecuretty\fR(5),
+\fBgetty\fR(8)\&.
diff --git a/man/zh_CN/man1/newgrp.1 b/man/zh_CN/man1/newgrp.1
new file mode 100644
index 0000000..c696e0c
--- /dev/null
+++ b/man/zh_CN/man1/newgrp.1
@@ -0,0 +1,98 @@
+'\" t
+.\"     Title: newgrp
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 用户命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "NEWGRP" "1" "2020-01-23" "shadow\-utils 4\&.8\&.1" "用户命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+newgrp \- 登录到一个新组
+.SH "大纲"
+.HP \w'\fBnewgrp\fR\ 'u
+\fBnewgrp\fR [\-] [\fIgroup\fR]
+.SH "描述"
+.PP
+The
+\fBnewgrp\fR
+command is used to change the current group ID during a login session\&. If the optional
+\fB\-\fR
+flag is given, the user\*(Aqs environment will be reinitialized as though the user had logged in, otherwise the current environment, including current working directory, remains unchanged\&.
+.PP
+\fBnewgrp\fR
+changes the current real group ID to the named group, or to the default group listed in
+/etc/passwd
+if no group name is given\&.
+\fBnewgrp\fR
+also tries to add the group to the user groupset\&. If not root, the user will be prompted for a password if she does not have a password (in
+/etc/shadow
+if this user has an entry in the shadowed password file, or in
+/etc/passwd
+otherwise) and the group does, or if the user is not listed as a member and the group has a password\&. The user will be denied access if the group password is empty and the user is not listed as a member\&.
+.PP
+If there is an entry for this group in
+/etc/gshadow, then the list of members and the password of this group will be taken from this file, otherwise, the entry in
+/etc/group
+is considered\&.
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBSYSLOG_SG_ENAB\fR (boolean)
+.RS 4
+Enable "syslog" logging of
+\fBsg\fR
+activity\&.
+.RE
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.SH "参见"
+.PP
+\fBid\fR(1),
+\fBlogin\fR(1),
+\fBsu\fR(1),
+\fBsg\fR(1),
+\fBgpasswd\fR(1),
+\fBgroup\fR(5), \fBgshadow\fR(5)\&.
diff --git a/man/zh_CN/man1/passwd.1 b/man/zh_CN/man1/passwd.1
new file mode 100644
index 0000000..5d934a1
--- /dev/null
+++ b/man/zh_CN/man1/passwd.1
@@ -0,0 +1,365 @@
+'\" t
+.\"     Title: passwd
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 用户命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "PASSWD" "1" "2020-01-23" "shadow\-utils 4\&.8\&.1" "用户命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+passwd \- 更改用户密码
+.SH "大纲"
+.HP \w'\fBpasswd\fR\ 'u
+\fBpasswd\fR [\fI选项\fR] [\fI登录\fR]
+.SH "描述"
+.PP
+The
+\fBpasswd\fR
+command changes passwords for user accounts\&. A normal user may only change the password for their own account, while the superuser may change the password for any account\&.
+\fBpasswd\fR
+also changes the account or associated password validity period\&.
+.SS "密码更改"
+.PP
+如果有旧密码，首先提示用户输入旧密码。加密这个密码然后和存储的密码进行比较。用户只有一次机会输入正确密码。允许超级用户略过这个步骤，以便更改忘记了的密码。
+.PP
+After the password has been entered, password aging information is checked to see if the user is permitted to change the password at this time\&. If not,
+\fBpasswd\fR
+refuses to change the password and exits\&.
+.PP
+提示用户输入两次新密码。第二次和第一次进行比较，并且需要相同才能更改密码。
+.PP
+然后，测试密码的负责程度。一般来讲，密码应该包含 6 到 8 位字符，从下边的一个或多个集合中选择：
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+小写字母
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+数字 0 到 9
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+标点符号
+.RE
+.PP
+Care must be taken not to include the system default erase or kill characters\&.
+\fBpasswd\fR
+will reject any password which is not suitably complex\&.
+.SS "关于用户密码的提示"
+.PP
+The security of a password depends upon the strength of the encryption algorithm and the size of the key space\&. The legacy
+\fIUNIX\fR
+System encryption method is based on the NBS DES algorithm\&. More recent methods are now recommended (see
+\fBENCRYPT_METHOD\fR)\&. The size of the key space depends upon the randomness of the password which is selected\&.
+.PP
+由于粗心地或处理选择密码，会危及密码的安全。由于这个原因，您不应该选择出现在词典中或者必须要写下来才能记住的密码。密码也不应该是一个名字、许可证号、生日或者街道号。所有这些可以用于猜测来损害系统安全。
+.PP
+You can find advice on how to choose a strong password on http://en\&.wikipedia\&.org/wiki/Password_strength
+.SH "选项"
+.PP
+The options which apply to the
+\fBpasswd\fR
+command are:
+.PP
+\fB\-a\fR, \fB\-\-all\fR
+.RS 4
+This option can be used only with
+\fB\-S\fR
+and causes show status for all users\&.
+.RE
+.PP
+\fB\-d\fR, \fB\-\-delete\fR
+.RS 4
+删除用户密码(让它为空)。这是禁用一个用户密码的快速方法。它将设置给出名称的账户。
+.RE
+.PP
+\fB\-e\fR, \fB\-\-expire\fR
+.RS 4
+让一个账户的密码立即过期。这可以强制一个用户下次登录时更改密码。
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-i\fR, \fB\-\-inactive\fR\ \&\fIINACTIVE\fR
+.RS 4
+This option is used to disable an account after the password has been expired for a number of days\&. After a user account has had an expired password for
+\fIINACTIVE\fR
+days, the user may no longer sign on to the account\&.
+.RE
+.PP
+\fB\-k\fR, \fB\-\-keep\-tokens\fR
+.RS 4
+表示密码更改只应该因为认证口令(密码)过期更改。用户希望保持他们尚未过期的口令。
+.RE
+.PP
+\fB\-l\fR, \fB\-\-lock\fR
+.RS 4
+锁定指定账户的密码。此选项通过将密码更改为一个不可能与加密值匹配的值来禁用(它在密码开头添加一个\(lq!\(rq)。
+.sp
+Note that this does not disable the account\&. The user may still be able to login using another authentication token (e\&.g\&. an SSH key)\&. To disable the account, administrators should use
+\fBusermod \-\-expiredate 1\fR
+(this set the account\*(Aqs expire date to Jan 2, 1970)\&.
+.sp
+被锁定了密码的用户不允许更改密码。
+.RE
+.PP
+\fB\-n\fR, \fB\-\-mindays\fR\ \&\fIMIN_DAYS\fR
+.RS 4
+Set the minimum number of days between password changes to
+\fIMIN_DAYS\fR\&. A value of zero for this field indicates that the user may change their password at any time\&.
+.RE
+.PP
+\fB\-q\fR, \fB\-\-quiet\fR
+.RS 4
+安静模式。
+.RE
+.PP
+\fB\-r\fR, \fB\-\-repository\fR\ \&\fIREPOSITORY\fR
+.RS 4
+change password in
+\fIREPOSITORY\fR
+repository
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-S\fR, \fB\-\-status\fR
+.RS 4
+显示账户状态信息。状态信息包含 7 个字段。首个字段是用户的登录名，第二个字段表示用户账户是否已经锁定密码(L)、没有密码 (NP)或者密码可用(P)，第三个字段给出最后一次更改密码的日期。接下来的四个字段分别是密码的最小年龄、最大年龄、警告期和禁用期。这些年龄以天为单位计算。
+.RE
+.PP
+\fB\-u\fR, \fB\-\-unlock\fR
+.RS 4
+Unlock the password of the named account\&. This option re\-enables a password by changing the password back to its previous value (to the value before using the
+\fB\-l\fR
+option)\&.
+.RE
+.PP
+\fB\-w\fR, \fB\-\-warndays\fR\ \&\fIWARN_DAYS\fR
+.RS 4
+Set the number of days of warning before a password change is required\&. The
+\fIWARN_DAYS\fR
+option is the number of days prior to the password expiring that a user will be warned that their password is about to expire\&.
+.RE
+.PP
+\fB\-x\fR, \fB\-\-maxdays\fR\ \&\fIMAX_DAYS\fR
+.RS 4
+Set the maximum number of days a password remains valid\&. After
+\fIMAX_DAYS\fR, the password is required to be changed\&.
+.sp
+Passing the number
+\fI\-1\fR
+as
+\fIMAX_DAYS\fR
+will remove checking a password\*(Aqs validity\&.
+.RE
+.SH "CAVEATS"
+.PP
+密码复杂性检查在每台机器间不同。用户应该选择适合的尽量复杂的密码。
+.PP
+在启动了 NIS 的系统上，如果没有登录 NIS 服务器，用户或许不能更改自己的密码。
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBENCRYPT_METHOD\fR (string)
+.RS 4
+这定义了系统加密密码的默认算法(如果没有在命令行上指定算法)。
+.sp
+It can take one of these values:
+\fIDES\fR
+(default),
+\fIMD5\fR, \fISHA256\fR, \fISHA512\fR\&.
+.sp
+Note: this parameter overrides the
+\fBMD5_CRYPT_ENAB\fR
+variable\&.
+.RE
+.PP
+\fBMD5_CRYPT_ENAB\fR (boolean)
+.RS 4
+Indicate if passwords must be encrypted using the MD5\-based algorithm\&. If set to
+\fIyes\fR, new passwords will be encrypted using the MD5\-based algorithm compatible with the one used by recent releases of FreeBSD\&. It supports passwords of unlimited length and longer salt strings\&. Set to
+\fIno\fR
+if you need to copy encrypted passwords to other systems which don\*(Aqt understand the new algorithm\&. Default is
+\fIno\fR\&.
+.sp
+This variable is superseded by the
+\fBENCRYPT_METHOD\fR
+variable or by any command line option used to configure the encryption algorithm\&.
+.sp
+This variable is deprecated\&. You should use
+\fBENCRYPT_METHOD\fR\&.
+.RE
+.PP
+\fBOBSCURE_CHECKS_ENAB\fR (boolean)
+.RS 4
+对密码更改启用附加检查。
+.RE
+.PP
+\fBPASS_ALWAYS_WARN\fR (boolean)
+.RS 4
+如果是 root，警告弱密码，但是仍然允许使用。
+.RE
+.PP
+\fBPASS_CHANGE_TRIES\fR (number)
+.RS 4
+可以尝试更改密码的最大次数(太容易)。
+.RE
+.PP
+\fBPASS_MAX_LEN\fR (number), \fBPASS_MIN_LEN\fR (number)
+.RS 4
+Number of significant characters in the password for crypt()\&.
+\fBPASS_MAX_LEN\fR
+is 8 by default\&. Don\*(Aqt change unless your crypt() is better\&. This is ignored if
+\fBMD5_CRYPT_ENAB\fR
+set to
+\fIyes\fR\&.
+.RE
+.PP
+\fBSHA_CRYPT_MIN_ROUNDS\fR (number), \fBSHA_CRYPT_MAX_ROUNDS\fR (number)
+.RS 4
+When
+\fBENCRYPT_METHOD\fR
+is set to
+\fISHA256\fR
+or
+\fISHA512\fR, this defines the number of SHA rounds used by the encryption algorithm by default (when the number of rounds is not specified on the command line)\&.
+.sp
+使用很多轮转，会让暴力破解更加困难。但是需要注意，认证用户时也会需要更多的 CPU 资源。
+.sp
+如果没有指定，libc 会选择默认的轮转数(5000)。
+.sp
+值必须在 1000 \- 999,999,999 之间。
+.sp
+If only one of the
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+or
+\fBSHA_CRYPT_MAX_ROUNDS\fR
+values is set, then this value will be used\&.
+.sp
+If
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+>
+\fBSHA_CRYPT_MAX_ROUNDS\fR, the highest value will be used\&.
+.RE
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.SH "退出值"
+.PP
+The
+\fBpasswd\fR
+command exits with the following values:
+.PP
+\fI0\fR
+.RS 4
+success
+.RE
+.PP
+\fI1\fR
+.RS 4
+permission denied
+.RE
+.PP
+\fI2\fR
+.RS 4
+invalid combination of options
+.RE
+.PP
+\fI3\fR
+.RS 4
+unexpected failure, nothing done
+.RE
+.PP
+\fI4\fR
+.RS 4
+unexpected failure,
+passwd
+file missing
+.RE
+.PP
+\fI5\fR
+.RS 4
+passwd
+file busy, try again
+.RE
+.PP
+\fI6\fR
+.RS 4
+invalid argument to option
+.RE
+.SH "参见"
+.PP
+\fBchpasswd\fR(8),
+\fBpasswd\fR(5),
+\fBshadow\fR(5),
+\fBlogin.defs\fR(5),
+\fBusermod\fR(8)\&.
diff --git a/man/zh_CN/man1/sg.1 b/man/zh_CN/man1/sg.1
new file mode 100644
index 0000000..bda6a5e
--- /dev/null
+++ b/man/zh_CN/man1/sg.1
@@ -0,0 +1,97 @@
+'\" t
+.\"     Title: sg
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 用户命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "SG" "1" "2020-01-23" "shadow\-utils 4\&.8\&.1" "用户命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+sg \- 以不同的组 ID 执行命令
+.SH "大纲"
+.HP \w'\fBsg\fR\ 'u
+\fBsg\fR [\-] [group\ [\-c\ ]\ command]
+.SH "描述"
+.PP
+The
+\fBsg\fR
+command works similar to
+\fBnewgrp\fR
+but accepts a command\&. The command will be executed with the
+/bin/sh
+shell\&. With most shells you may run
+\fBsg\fR
+from, you need to enclose multi\-word commands in quotes\&. Another difference between
+\fBnewgrp\fR
+and
+\fBsg\fR
+is that some shells treat
+\fBnewgrp\fR
+specially, replacing themselves with a new instance of a shell that
+\fBnewgrp\fR
+creates\&. This doesn\*(Aqt happen with
+\fBsg\fR, so upon exit from a
+\fBsg\fR
+command you are returned to your previous group ID\&.
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBSYSLOG_SG_ENAB\fR (boolean)
+.RS 4
+Enable "syslog" logging of
+\fBsg\fR
+activity\&.
+.RE
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.SH "参见"
+.PP
+\fBid\fR(1),
+\fBlogin\fR(1),
+\fBnewgrp\fR(1),
+\fBsu\fR(1),
+\fBgpasswd\fR(1),
+\fBgroup\fR(5), \fBgshadow\fR(5)\&.
diff --git a/man/zh_CN/man1/su.1 b/man/zh_CN/man1/su.1
new file mode 100644
index 0000000..c4d29c1
--- /dev/null
+++ b/man/zh_CN/man1/su.1
@@ -0,0 +1,448 @@
+'\" t
+.\"     Title: su
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 用户命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "SU" "1" "2020-01-23" "shadow\-utils 4\&.8\&.1" "用户命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+su \- 更改用户 ID 或成为超级用户
+.SH "大纲"
+.HP \w'\fBsu\fR\ 'u
+\fBsu\fR [\fI选项\fR] [\fI\-\fR] [\fI用户名\fR\ [\ \fIargs\fR\ ]]
+.SH "描述"
+.PP
+The
+\fBsu\fR
+command is used to become another user during a login session\&. Invoked without a
+\fBusername\fR,
+\fBsu\fR
+defaults to becoming the superuser\&. The
+\fB\-\fR
+option may be used to provide an environment similar to what the user would expect had the user logged in directly\&. The
+\fB\-c\fR
+option may be used to treat the next argument as a command by most shells\&.
+.PP
+Options are recognized everywhere in the argument list\&. You can use the
+\fB\-\-\fR
+argument to stop option parsing\&. The
+\fB\-\fR
+option is special: it is also recognized after
+\fB\-\-\fR, but has to be placed before
+\fBusername\fR\&.
+.PP
+如果合适，将提示用户输入一个密码。输入无效的密码会产生一个错误消息。所有的尝试，无论成功还是失败，都会被记录，以检测对系统的滥用。
+.PP
+The current environment is passed to the new shell\&. The value of
+\fB$PATH\fR
+is reset to
+/bin:/usr/bin
+for normal users, or
+/sbin:/bin:/usr/sbin:/usr/bin
+for the superuser\&. This may be changed with the
+\fBENV_PATH\fR
+and
+\fBENV_SUPATH\fR
+definitions in
+/etc/login\&.defs\&.
+.PP
+在登录 shell 中以第一个字符是\(lq*\(rq标注的是子系统登录。给定的主目录将被用于用户实际登录的新文件系统的根。
+.SH "选项"
+.PP
+The options which apply to the
+\fBsu\fR
+command are:
+.PP
+\fB\-c\fR, \fB\-\-command\fR\ \&\fICOMMAND\fR
+.RS 4
+Specify a command that will be invoked by the shell using its
+\fB\-c\fR\&.
+.sp
+The executed command will have no controlling terminal\&. This option cannot be used to execute interactive programs which need a controlling TTY\&.
+.RE
+.PP
+\fB\-\fR, \fB\-l\fR, \fB\-\-login\fR
+.RS 4
+提供一个类似于用户直接登录的环境，用户可能会希望这样。
+.sp
+When
+\fB\-\fR
+is used, it must be specified before any
+\fBusername\fR\&. For portability it is recommended to use it as last option, before any
+\fBusername\fR\&. The other forms (\fB\-l\fR
+and
+\fB\-\-login\fR) do not have this restriction\&.
+.RE
+.PP
+\fB\-s\fR, \fB\-\-shell\fR\ \&\fISHELL\fR
+.RS 4
+将使用的 shell。
+.sp
+The invoked shell is chosen from (highest priority first):
+.PP
+.RS 4
+The shell specified with \-\-shell\&.
+.RE
+.PP
+.RS 4
+If
+\fB\-\-preserve\-environment\fR
+is used, the shell specified by the
+\fB$SHELL\fR
+environment variable\&.
+.RE
+.PP
+.RS 4
+The shell indicated in the
+/etc/passwd
+entry for the target user\&.
+.RE
+.PP
+.RS 4
+/bin/sh
+if a shell could not be found by any above method\&.
+.RE
+.sp
+If the target user has a restricted shell (i\&.e\&. the shell field of this user\*(Aqs entry in
+/etc/passwd
+is not listed in
+/etc/shells), then the
+\fB\-\-shell\fR
+option or the
+\fB$SHELL\fR
+environment variable won\*(Aqt be taken into account, unless
+\fBsu\fR
+is called by root\&.
+.RE
+.PP
+\fB\-m\fR, \fB\-p\fR, \fB\-\-preserve\-environment\fR
+.RS 4
+Preserve the current environment, except for:
+.PP
+\fB$PATH\fR
+.RS 4
+reset according to the
+/etc/login\&.defs
+options
+\fBENV_PATH\fR
+or
+\fBENV_SUPATH\fR
+(see below);
+.RE
+.PP
+\fB$IFS\fR
+.RS 4
+reset to
+\(lq<space><tab><newline>\(rq, if it was set\&.
+.RE
+.sp
+If the target user has a restricted shell, this option has no effect (unless
+\fBsu\fR
+is called by root)\&.
+.sp
+Note that the default behavior for the environment is the following:
+.PP
+.RS 4
+The
+\fB$HOME\fR,
+\fB$SHELL\fR,
+\fB$USER\fR,
+\fB$LOGNAME\fR,
+\fB$PATH\fR, and
+\fB$IFS\fR
+environment variables are reset\&.
+.RE
+.PP
+.RS 4
+If
+\fB\-\-login\fR
+is not used, the environment is copied, except for the variables above\&.
+.RE
+.PP
+.RS 4
+If
+\fB\-\-login\fR
+is used, the
+\fB$TERM\fR,
+\fB$COLORTERM\fR,
+\fB$DISPLAY\fR, and
+\fB$XAUTHORITY\fR
+environment variables are copied if they were set\&.
+.RE
+.PP
+.RS 4
+If
+\fB\-\-login\fR
+is used, the
+\fB$TZ\fR,
+\fB$HZ\fR, and
+\fB$MAIL\fR
+environment variables are set according to the
+/etc/login\&.defs
+options
+\fBENV_TZ\fR,
+\fBENV_HZ\fR,
+\fBMAIL_DIR\fR, and
+\fBMAIL_FILE\fR
+(see below)\&.
+.RE
+.PP
+.RS 4
+If
+\fB\-\-login\fR
+is used, other environment variables might be set by the
+\fBENVIRON_FILE\fR
+file (see below)\&.
+.RE
+.sp
+.RE
+.SH "CAVEATS"
+.PP
+This version of
+\fBsu\fR
+has many compilation options, only some of which may be in use at any particular site\&.
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBCONSOLE\fR (string)
+.RS 4
+如果定义了，或者是包含设备名(没行一个)的文件的完整路径名，或者是\(lq:\(rq分隔的设备名列表。将只会在这写设备上允许 root 登录。
+.sp
+如果没有定义，可以在任何设备上使用 root。
+.sp
+指定的设备时不带 /dev/ 前缀。
+.RE
+.PP
+\fBCONSOLE_GROUPS\fR (string)
+.RS 4
+List of groups to add to the user\*(Aqs supplementary groups set when logging in on the console (as determined by the CONSOLE setting)\&. Default is none\&.
+
+Use with caution \- it is possible for users to gain permanent access to these groups, even when not logged in on the console\&.
+.RE
+.PP
+\fBDEFAULT_HOME\fR (boolean)
+.RS 4
+如果不能 cd 到主目录时，说明是否允许登录。默认是否。
+.sp
+If set to
+\fIyes\fR, the user will login in the root (/) directory if it is not possible to cd to her home directory\&.
+.RE
+.PP
+\fBENV_HZ\fR (string)
+.RS 4
+If set, it will be used to define the HZ environment variable when a user login\&. The value must be preceded by
+\fIHZ=\fR\&. A common value on Linux is
+\fIHZ=100\fR\&.
+.RE
+.PP
+\fBENVIRON_FILE\fR (string)
+.RS 4
+如果此文件存在，并且可读，将会从中读取登录环境。所有行都必须是 name=value 的格式。
+.sp
+以 # 开头的行将视为注释，并被忽略。
+.RE
+.PP
+\fBENV_PATH\fR (string)
+.RS 4
+If set, it will be used to define the PATH environment variable when a regular user login\&. The value is a colon separated list of paths (for example
+\fI/bin:/usr/bin\fR) and can be preceded by
+\fIPATH=\fR\&. The default value is
+\fIPATH=/bin:/usr/bin\fR\&.
+.RE
+.PP
+\fBENV_SUPATH\fR (string)
+.RS 4
+If set, it will be used to define the PATH environment variable when the superuser login\&. The value is a colon separated list of paths (for example
+\fI/sbin:/bin:/usr/sbin:/usr/bin\fR) and can be preceded by
+\fIPATH=\fR\&. The default value is
+\fIPATH=/sbin:/bin:/usr/sbin:/usr/bin\fR\&.
+.RE
+.PP
+\fBENV_TZ\fR (string)
+.RS 4
+If set, it will be used to define the TZ environment variable when a user login\&. The value can be the name of a timezone preceded by
+\fITZ=\fR
+(for example
+\fITZ=CST6CDT\fR), or the full path to the file containing the timezone specification (for example
+/etc/tzname)\&.
+.sp
+If a full path is specified but the file does not exist or cannot be read, the default is to use
+\fITZ=CST6CDT\fR\&.
+.RE
+.PP
+\fBLOGIN_STRING\fR (string)
+.RS 4
+此字符串用于提示输入密码。默认是 "Password: "，或者翻译了的结果(汉语中翻译为了\(lq密码：\(rq)。如果设置了此变量，提示不会被翻译。
+.sp
+If the string contains
+\fI%s\fR, this will be replaced by the user\*(Aqs name\&.
+.RE
+.PP
+\fBMAIL_CHECK_ENAB\fR (boolean)
+.RS 4
+启用登录时检查和现实邮箱状态。
+.sp
+如果 shell 的启动文件已经检查了邮件("mailx \-e" 或者其它同功能的工具)，您应该禁用它。
+.RE
+.PP
+\fBMAIL_DIR\fR (string)
+.RS 4
+邮箱目录。修改或删除用户账户时需要处理邮箱，如果没有指定，将使用编译时指定的默认值。
+.RE
+.PP
+\fBMAIL_FILE\fR (string)
+.RS 4
+定义用户邮箱文件的位置(相对于主目录)。
+.RE
+.PP
+The
+\fBMAIL_DIR\fR
+and
+\fBMAIL_FILE\fR
+variables are used by
+\fBuseradd\fR,
+\fBusermod\fR, and
+\fBuserdel\fR
+to create, move, or delete the user\*(Aqs mail spool\&.
+.PP
+If
+\fBMAIL_CHECK_ENAB\fR
+is set to
+\fIyes\fR, they are also used to define the
+\fBMAIL\fR
+environment variable\&.
+.PP
+\fBQUOTAS_ENAB\fR (boolean)
+.RS 4
+Enable setting of resource limits from
+/etc/limits
+and ulimit, umask, and niceness from the user\*(Aqs passwd gecos field\&.
+.RE
+.PP
+\fBSULOG_FILE\fR (string)
+.RS 4
+如果定义了，所有的 su 活动都会记录到此文件。
+.RE
+.PP
+\fBSU_NAME\fR (string)
+.RS 4
+如果定义了，就是运行\(lqsu \-\(rq时显示的命令名称。例如，如果定义为\(lqsu\(rq，那么\(lqps\(rq会显示此命令为\(lq\-su\(rq。如果没有定义，\(lqps\(rq将会显示实际执行的 shell，例如类似于\(lq\-sh\(rq。
+.RE
+.PP
+\fBSU_WHEEL_ONLY\fR (boolean)
+.RS 4
+If
+\fIyes\fR, the user must be listed as a member of the first gid 0 group in
+/etc/group
+(called
+\fIroot\fR
+on most Linux systems) to be able to
+\fBsu\fR
+to uid 0 accounts\&. If the group doesn\*(Aqt exist or is empty, no one will be able to
+\fBsu\fR
+to uid 0\&.
+.RE
+.PP
+\fBSYSLOG_SU_ENAB\fR (boolean)
+.RS 4
+Enable "syslog" logging of
+\fBsu\fR
+activity \- in addition to sulog file logging\&.
+.RE
+.PP
+\fBUSERGROUPS_ENAB\fR (boolean)
+.RS 4
+如果 uid 和 gid 相同，用户名和主用户名也相同，使非 root 组的组掩码位和属主位相同 (如：022 \-> 002, 077 \-> 007)。
+.sp
+If set to
+\fIyes\fR,
+\fBuserdel\fR
+will remove the user\*(Aqs group if it contains no more members, and
+\fBuseradd\fR
+will create by default a group with the name of the user\&.
+.RE
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.SH "退出值"
+.PP
+On success,
+\fBsu\fR
+returns the exit value of the command it executed\&.
+.PP
+If this command was terminated by a signal,
+\fBsu\fR
+returns the number of this signal plus 128\&.
+.PP
+If su has to kill the command (because it was asked to terminate, and the command did not terminate in time),
+\fBsu\fR
+returns 255\&.
+.PP
+Some exit values from
+\fBsu\fR
+are independent from the executed command:
+.PP
+\fI0\fR
+.RS 4
+success (\fB\-\-help\fR
+only)
+.RE
+.PP
+\fI1\fR
+.RS 4
+System or authentication failure
+.RE
+.PP
+\fI126\fR
+.RS 4
+The requested command was not found
+.RE
+.PP
+\fI127\fR
+.RS 4
+The requested command could not be executed
+.RE
+.SH "参见"
+.PP
+\fBlogin\fR(1),
+\fBlogin.defs\fR(5),
+\fBsg\fR(1),
+\fBsh\fR(1)\&.
diff --git a/man/zh_CN/man3/getspnam.3 b/man/zh_CN/man3/getspnam.3
new file mode 100644
index 0000000..cd473da
--- /dev/null
+++ b/man/zh_CN/man3/getspnam.3
@@ -0,0 +1 @@
+.so man3/shadow.3
diff --git a/man/zh_CN/man3/shadow.3 b/man/zh_CN/man3/shadow.3
new file mode 100644
index 0000000..cb8e8b6
--- /dev/null
+++ b/man/zh_CN/man3/shadow.3
@@ -0,0 +1,245 @@
+'\" t
+.\"     Title: shadow
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 库函数调用
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "SHADOW" "3" "2020-01-23" "shadow\-utils 4\&.8\&.1" "库函数调用"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+shadow, getspnam \- 加密密码文件工具函数
+.SH "SYNTAX"
+.PP
+\fI#include <shadow\&.h>\fR
+.PP
+\fIstruct spwd *getspent();\fR
+.PP
+\fIstruct spwd *getspnam(char\fR
+\fI*name\fR\fI);\fR
+.PP
+\fIvoid setspent();\fR
+.PP
+\fIvoid endspent();\fR
+.PP
+\fIstruct spwd *fgetspent(FILE\fR
+\fI*fp\fR\fI);\fR
+.PP
+\fIstruct spwd *sgetspent(char\fR
+\fI*cp\fR\fI);\fR
+.PP
+\fIint putspent(struct spwd\fR
+\fI*p,\fR
+\fIFILE\fR
+\fI*fp\fR\fI);\fR
+.PP
+\fIint lckpwdf();\fR
+.PP
+\fIint ulckpwdf();\fR
+.SH "描述"
+.PP
+\fIshadow\fR
+manipulates the contents of the shadow password file,
+/etc/shadow\&. The structure in the
+\fI#include\fR
+file is:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+struct spwd {
+      char		*sp_namp; /* user login name */
+      char		*sp_pwdp; /* encrypted password */
+      long int		sp_lstchg; /* last password change */
+      long int		sp_min; /* days until change allowed\&. */
+      long int		sp_max; /* days before change required */
+      long int		sp_warn; /* days warning for expiration */
+      long int		sp_inact; /* days before account inactive */
+      long int		sp_expire; /* date when account expires */
+      unsigned long int	sp_flag; /* reserved for future use */
+}
+    
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+每个字段的含义是：
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+sp_namp \- 指向以 null 结束的用户名的指针
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+sp_pwdp \- 指向 null 结束的密码的指针
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+sp_lstchg \- 最近更改密码的日期(日期计算方法是从1970年1月1日开始的天数)
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+sp_min \- days before which password may not be changed
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+sp_max \- days after which password must be changed
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+sp_warn \- days before password is to expire that user is warned of pending password expiration
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+sp_inact \- days after password expires that account is considered inactive and disabled
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+sp_expire \- days since Jan 1, 1970 when account will be disabled
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+sp_flag \- reserved for future use
+.RE
+.SH "描述"
+.PP
+\fIgetspent\fR,
+\fIgetspname\fR,
+\fIfgetspent\fR, and
+\fIsgetspent\fR
+each return a pointer to a
+\fIstruct spwd\fR\&.
+\fIgetspent\fR
+returns the next entry from the file, and
+\fIfgetspent\fR
+returns the next entry from the given stream, which is assumed to be a file of the proper format\&.
+\fIsgetspent\fR
+returns a pointer to a
+\fIstruct spwd\fR
+using the provided string as input\&.
+\fIgetspnam\fR
+searches from the current position in the file for an entry matching
+\fIname\fR\&.
+.PP
+\fIsetspent\fR
+and
+\fIendspent\fR
+may be used to begin and end, respectively, access to the shadow password file\&.
+.PP
+The
+\fIlckpwdf\fR
+and
+\fIulckpwdf\fR
+routines should be used to insure exclusive access to the
+/etc/shadow
+file\&.
+\fIlckpwdf\fR
+attempts to acquire a lock using
+\fIpw_lock\fR
+for up to 15 seconds\&. It continues by attempting to acquire a second lock using
+\fIspw_lock\fR
+for the remainder of the initial 15 seconds\&. Should either attempt fail after a total of 15 seconds,
+\fIlckpwdf\fR
+returns \-1\&. When both locks are acquired 0 is returned\&.
+.SH "DIAGNOSTICS"
+.PP
+Routines return NULL if no more entries are available or if an error occurs during processing\&. Routines which have
+\fIint\fR
+as the return value return 0 for success and \-1 for failure\&.
+.SH "CAVEATS"
+.PP
+这些函数只能由超级用户使用，因为对影子密码文件的访问是受限的。
+.SH "文件"
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.SH "参见"
+.PP
+\fBgetpwent\fR(3),
+\fBshadow\fR(5)\&.
diff --git a/man/zh_CN/man5/faillog.5 b/man/zh_CN/man5/faillog.5
new file mode 100644
index 0000000..39a982f
--- /dev/null
+++ b/man/zh_CN/man5/faillog.5
@@ -0,0 +1,64 @@
+'\" t
+.\"     Title: faillog
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 文件格式和转化
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "FAILLOG" "5" "2020-01-23" "shadow\-utils 4\&.8\&.1" "文件格式和转化"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+faillog \- 登录失败的日志文件
+.SH "描述"
+.PP
+/var/log/faillog
+maintains a count of login failures and the limits for each account\&.
+.PP
+The file contains fixed length records, indexed by numerical UID\&. Each record contains the count of login failures since the last successful login; the maximum number of failures before the account is disabled; the line on which the last login failure occurred; the date of the last login failure; and the duration (in seconds) during which the account will be locked after a failure\&.
+.PP
+文件的结构是：
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+struct	faillog {
+	short   fail_cnt;
+	short   fail_max;
+	char    fail_line[12];
+	time_t  fail_time;
+	long    fail_locktime;
+};
+.fi
+.if n \{\
+.RE
+.\}
+.SH "文件"
+.PP
+/var/log/faillog
+.RS 4
+Failure logging file\&.
+.RE
+.SH "参见"
+.PP
+\fBfaillog\fR(8)
diff --git a/man/zh_CN/man5/gshadow.5 b/man/zh_CN/man5/gshadow.5
new file mode 100644
index 0000000..ac163c8
--- /dev/null
+++ b/man/zh_CN/man5/gshadow.5
@@ -0,0 +1,101 @@
+'\" t
+.\"     Title: gshadow
+.\"    Author: Nicolas Fran\(,cois <nicolas.francois@centraliens.net>
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 文件格式和转化
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "GSHADOW" "5" "2020-01-23" "shadow\-utils 4\&.8\&.1" "文件格式和转化"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+gshadow \- 影子化了的组文件
+.SH "描述"
+.PP
+/etc/gshadow
+contains the shadowed information for group accounts\&.
+.PP
+如果没有维护好密码安全，此文件绝对不能让普通用户可读。
+.PP
+此文件的每行包含逗号分隔的如下字段：
+.PP
+\fB组名\fR
+.RS 4
+必须是系统中已经存在的有效组。
+.RE
+.PP
+\fB加密了的密码\fR
+.RS 4
+Refer to
+\fBcrypt\fR(3)
+for details on how this string is interpreted\&.
+.sp
+If the password field contains some string that is not a valid result of
+\fBcrypt\fR(3), for instance ! or *, users will not be able to use a unix password to access the group (but group members do not need the password)\&.
+.sp
+The password is used when a user who is not a member of the group wants to gain the permissions of this group (see
+\fBnewgrp\fR(1))\&.
+.sp
+此字段可以为空，此时，只有组成员可以获取组权限。
+.sp
+A password field which starts with an exclamation mark means that the password is locked\&. The remaining characters on the line represent the password field before the password was locked\&.
+.sp
+This password supersedes any password specified in
+/etc/group\&.
+.RE
+.PP
+\fB管理员\fR
+.RS 4
+必须是一个逗号分隔的用户名列表。
+.sp
+管理员可以更改组密码和成员。
+.sp
+管理员也有成员一样的权限(请看下边)。
+.RE
+.PP
+\fB成员\fR
+.RS 4
+必须是一个逗号分隔的用户名列表。
+.sp
+成员可以免密码访问组。
+.sp
+You should use the same list of users as in
+/etc/group\&.
+.RE
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.SH "参见"
+.PP
+\fBgpasswd\fR(5),
+\fBgroup\fR(5),
+\fBgrpck\fR(8),
+\fBgrpconv\fR(8),
+\fBnewgrp\fR(1)\&.
diff --git a/man/zh_CN/man5/limits.5 b/man/zh_CN/man5/limits.5
new file mode 100644
index 0000000..1328a85
--- /dev/null
+++ b/man/zh_CN/man5/limits.5
@@ -0,0 +1,274 @@
+'\" t
+.\"     Title: limits
+.\"    Author: Luca Berra
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 文件格式和转化
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "LIMITS" "5" "2020-01-23" "shadow\-utils 4\&.8\&.1" "文件格式和转化"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+limits \- 资源限制描述
+.SH "描述"
+.PP
+The
+\fIlimits\fR
+file (/etc/limits
+by default or LIMITS_FILE defined
+config\&.h) describes the resource limits you wish to impose\&. It should be owned by root and readable by root account only\&.
+.PP
+By default no quota is imposed on \*(Aqroot\*(Aq\&. In fact, there is no way to impose limits via this procedure to root\-equiv accounts (accounts with UID 0)\&.
+.PP
+每行以如下格式对一个用户描述限制：
+.PP
+\fIuser LIMITS_STRING\fR
+.PP
+或如下格式：
+.PP
+\fI@group LIMITS_STRING\fR
+.PP
+The
+\fILIMITS_STRING\fR
+is a string of a concatenated list of resource limits\&. Each limit consists of a letter identifier followed by a numerical limit\&.
+.PP
+可用的指示符有：
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+A：最大地址空间 (KB)
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+C：最大转储文件大小 (KB)
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+D：最大数据大小 (KB)
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+F: maximum file size (KB)
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+K: file creation mask, set by
+\fBumask\fR(2)\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+I：最高 nice 级别，(0\&.\&.\&.39 对应 20\&.\&.\&.\-19)
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+L：此用户的最大登录数
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+M: max locked\-in\-memory address space (KB)
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+N：最大的文件打开数
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+O：最大实时优先级
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+P: process priority, set by
+\fBsetpriority\fR(2)\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+R: max resident set size (KB)
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+S：最大栈尺寸 (KB)
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+T：最大 CPU 时间 (分钟)
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+U：最大处理器数目
+.RE
+.PP
+For example,
+\fIL2D2048N5\fR
+is a valid
+\fILIMITS_STRING\fR\&. For reading convenience, the following entries are equivalent:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+      username L2D2048N5
+      username L2 D2048 N5
+    
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+Be aware that after
+\fIusername\fR
+the rest of the line is considered a limit string, thus comments are not allowed\&. An invalid limits string will be rejected (not considered) by the
+\fBlogin\fR
+program\&.
+.PP
+The default entry is denoted by username "\fI*\fR"\&. If you have multiple
+\fIdefault\fR
+entries in your
+\fILIMITS_FILE\fR, then the last one will be used as the default entry\&.
+.PP
+The limits specified in the form "\fI@group\fR" apply to the members of the specified
+\fIgroup\fR\&.
+.PP
+If more than one line with limits for a user exist, only the first line for this user will be considered\&.
+.PP
+If no lines are specified for a user, the last
+\fI@group\fR
+line matching a group whose the user is a member of will be considered, or the last line with default limits if no groups contain the user\&.
+.PP
+To completely disable limits for a user, a single dash "\fI\-\fR" will do\&.
+.PP
+To disable a limit for a user, a single dash "\fI\-\fR" can be used instead of the numerical value for this limit\&.
+.PP
+Also, please note that all limit settings are set PER LOGIN\&. They are not global, nor are they permanent\&. Perhaps global limits will come, but for now this will have to do ;)
+.SH "文件"
+.PP
+/etc/limits
+.RS 4
+.RE
+.SH "参见"
+.PP
+\fBlogin\fR(1),
+\fBsetpriority\fR(2),
+\fBsetrlimit\fR(2)\&.
diff --git a/man/zh_CN/man5/login.access.5 b/man/zh_CN/man5/login.access.5
new file mode 100644
index 0000000..1e91af4
--- /dev/null
+++ b/man/zh_CN/man5/login.access.5
@@ -0,0 +1,67 @@
+'\" t
+.\"     Title: login.access
+.\"    Author: Marek Micha\(/lkiewicz
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 文件格式和转化
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "LOGIN\&.ACCESS" "5" "2020-01-23" "shadow\-utils 4\&.8\&.1" "文件格式和转化"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+login.access \- 登录访问控制表
+.SH "描述"
+.PP
+The
+\fIlogin\&.access\fR
+file specifies (user, host) combinations and/or (user, tty) combinations for which a login will be either accepted or refused\&.
+.PP
+When someone logs in, the
+\fIlogin\&.access\fR
+is scanned for the first entry that matches the (user, host) combination, or, in case of non\-networked logins, the first entry that matches the (user, tty) combination\&. The permissions field of that table entry determines whether the login will be accepted or refused\&.
+.PP
+登录访问控制表的每一行有\(lq:\(rq分隔的三个字段：
+.PP
+\fIpermission\fR:\fIusers\fR:\fIorigins\fR
+.PP
+The first field should be a "\fI+\fR" (access granted) or "\fI\-\fR" (access denied) character\&. The second field should be a list of one or more login names, group names, or
+\fIALL\fR
+(always matches)\&. The third field should be a list of one or more tty names (for non\-networked logins), host names, domain names (begin with "\&."), host addresses, internet network numbers (end with "\&."),
+\fIALL\fR
+(always matches) or
+\fILOCAL\fR
+(matches any string that does not contain a "\&." character)\&. If you run NIS you can use @netgroupname in host or user patterns\&.
+.PP
+The
+\fIEXCEPT\fR
+operator makes it possible to write very compact rules\&.
+.PP
+The group file is searched only when a name does not match that of the logged\-in user\&. Only groups are matched in which users are explicitly listed: the program does not look at a user\*(Aqs primary group id value\&.
+.SH "文件"
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.SH "参见"
+.PP
+\fBlogin\fR(1)\&.
diff --git a/man/zh_CN/man5/login.defs.5 b/man/zh_CN/man5/login.defs.5
new file mode 100644
index 0000000..6267e1f
--- /dev/null
+++ b/man/zh_CN/man5/login.defs.5
@@ -0,0 +1,854 @@
+'\" t
+.\"     Title: login.defs
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 文件格式和转化
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "LOGIN\&.DEFS" "5" "2020-01-23" "shadow\-utils 4\&.8\&.1" "文件格式和转化"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+login.defs \- 影子密码套件配置
+.SH "描述"
+.PP
+The
+/etc/login\&.defs
+file defines the site\-specific configuration for the shadow password suite\&. This file is required\&. Absence of this file will not prevent system operation, but will probably result in undesirable operation\&.
+.PP
+This file is a readable text file, each line of the file describing one configuration parameter\&. The lines consist of a configuration name and value, separated by whitespace\&. Blank lines and comment lines are ignored\&. Comments are introduced with a "#" pound sign and the pound sign must be the first non\-white character of the line\&.
+.PP
+Parameter values may be of four types: strings, booleans, numbers, and long numbers\&. A string is comprised of any printable characters\&. A boolean should be either the value
+\fIyes\fR
+or
+\fIno\fR\&. An undefined boolean parameter or one with a value other than these will be given a
+\fIno\fR
+value\&. Numbers (both regular and long) may be either decimal values, octal values (precede the value with
+\fI0\fR) or hexadecimal values (precede the value with
+\fI0x\fR)\&. The maximum value of the regular and long numeric parameters is machine\-dependent\&.
+.PP
+提供如下配置项：
+.PP
+\fBCHFN_AUTH\fR (boolean)
+.RS 4
+If
+\fIyes\fR, the
+\fBchfn\fR
+program will require authentication before making any changes, unless run by the superuser\&.
+.RE
+.PP
+\fBCHFN_RESTRICT\fR (string)
+.RS 4
+This parameter specifies which values in the
+\fIgecos\fR
+field of the
+/etc/passwd
+file may be changed by regular users using the
+\fBchfn\fR
+program\&. It can be any combination of letters
+\fIf\fR,
+\fIr\fR,
+\fIw\fR,
+\fIh\fR, for Full name, Room number, Work phone, and Home phone, respectively\&. For backward compatibility,
+\fIyes\fR
+is equivalent to
+\fIrwh\fR
+and
+\fIno\fR
+is equivalent to
+\fIfrwh\fR\&. If not specified, only the superuser can make any changes\&. The most restrictive setting is better achieved by not installing
+\fBchfn\fR
+SUID\&.
+.RE
+.PP
+\fBCHSH_AUTH\fR (boolean)
+.RS 4
+If
+\fIyes\fR, the
+\fBchsh\fR
+program will require authentication before making any changes, unless run by the superuser\&.
+.RE
+.PP
+\fBCONSOLE\fR (string)
+.RS 4
+如果定义了，或者是包含设备名(没行一个)的文件的完整路径名，或者是\(lq:\(rq分隔的设备名列表。将只会在这写设备上允许 root 登录。
+.sp
+如果没有定义，可以在任何设备上使用 root。
+.sp
+指定的设备时不带 /dev/ 前缀。
+.RE
+.PP
+\fBCONSOLE_GROUPS\fR (string)
+.RS 4
+List of groups to add to the user\*(Aqs supplementary groups set when logging in on the console (as determined by the CONSOLE setting)\&. Default is none\&.
+
+Use with caution \- it is possible for users to gain permanent access to these groups, even when not logged in on the console\&.
+.RE
+.PP
+\fBCREATE_HOME\fR (boolean)
+.RS 4
+指示是否应该为新用户默认创建主目录。
+.sp
+此设置并不应用到系统用户，并且可以使用命令行覆盖。
+.RE
+.PP
+\fBDEFAULT_HOME\fR (boolean)
+.RS 4
+如果不能 cd 到主目录时，说明是否允许登录。默认是否。
+.sp
+If set to
+\fIyes\fR, the user will login in the root (/) directory if it is not possible to cd to her home directory\&.
+.RE
+.PP
+\fBENCRYPT_METHOD\fR (string)
+.RS 4
+这定义了系统加密密码的默认算法(如果没有在命令行上指定算法)。
+.sp
+It can take one of these values:
+\fIDES\fR
+(default),
+\fIMD5\fR, \fISHA256\fR, \fISHA512\fR\&.
+.sp
+Note: this parameter overrides the
+\fBMD5_CRYPT_ENAB\fR
+variable\&.
+.RE
+.PP
+\fBENV_HZ\fR (string)
+.RS 4
+If set, it will be used to define the HZ environment variable when a user login\&. The value must be preceded by
+\fIHZ=\fR\&. A common value on Linux is
+\fIHZ=100\fR\&.
+.RE
+.PP
+\fBENV_PATH\fR (string)
+.RS 4
+If set, it will be used to define the PATH environment variable when a regular user login\&. The value is a colon separated list of paths (for example
+\fI/bin:/usr/bin\fR) and can be preceded by
+\fIPATH=\fR\&. The default value is
+\fIPATH=/bin:/usr/bin\fR\&.
+.RE
+.PP
+\fBENV_SUPATH\fR (string)
+.RS 4
+If set, it will be used to define the PATH environment variable when the superuser login\&. The value is a colon separated list of paths (for example
+\fI/sbin:/bin:/usr/sbin:/usr/bin\fR) and can be preceded by
+\fIPATH=\fR\&. The default value is
+\fIPATH=/sbin:/bin:/usr/sbin:/usr/bin\fR\&.
+.RE
+.PP
+\fBENV_TZ\fR (string)
+.RS 4
+If set, it will be used to define the TZ environment variable when a user login\&. The value can be the name of a timezone preceded by
+\fITZ=\fR
+(for example
+\fITZ=CST6CDT\fR), or the full path to the file containing the timezone specification (for example
+/etc/tzname)\&.
+.sp
+If a full path is specified but the file does not exist or cannot be read, the default is to use
+\fITZ=CST6CDT\fR\&.
+.RE
+.PP
+\fBENVIRON_FILE\fR (string)
+.RS 4
+如果此文件存在，并且可读，将会从中读取登录环境。所有行都必须是 name=value 的格式。
+.sp
+以 # 开头的行将视为注释，并被忽略。
+.RE
+.PP
+\fBERASECHAR\fR (number)
+.RS 4
+Terminal ERASE character (\fI010\fR
+= backspace,
+\fI0177\fR
+= DEL)\&.
+.sp
+此值可以使用前缀\(lq0\(rq表示八进制，\(lq0x\(rq表示十六进制。
+.RE
+.PP
+\fBFAIL_DELAY\fR (number)
+.RS 4
+登录失败后，等待多少秒才再允许登录。
+.RE
+.PP
+\fBFAILLOG_ENAB\fR (boolean)
+.RS 4
+Enable logging and display of
+/var/log/faillog
+login failure info\&.
+.RE
+.PP
+\fBFAKE_SHELL\fR (string)
+.RS 4
+If set,
+\fBlogin\fR
+will execute this shell instead of the users\*(Aq shell specified in
+/etc/passwd\&.
+.RE
+.PP
+\fBFTMP_FILE\fR (string)
+.RS 4
+如果定义，登录失败会以 utmp 格式记录在此文件中。
+.RE
+.PP
+\fBGID_MAX\fR (number), \fBGID_MIN\fR (number)
+.RS 4
+Range of group IDs used for the creation of regular groups by
+\fBuseradd\fR,
+\fBgroupadd\fR, or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBGID_MIN\fR
+(resp\&.
+\fBGID_MAX\fR) is 1000 (resp\&. 60000)\&.
+.RE
+.PP
+\fBHOME_MODE\fR (number)
+.RS 4
+The mode for new home directories\&. If not specified, the
+\fBUMASK\fR
+is used to create the mode\&.
+.sp
+\fBuseradd\fR
+and
+\fBnewusers\fR
+use this to set the mode of the home directory they create\&.
+.RE
+.PP
+\fBHUSHLOGIN_FILE\fR (string)
+.RS 4
+If defined, this file can inhibit all the usual chatter during the login sequence\&. If a full pathname is specified, then hushed mode will be enabled if the user\*(Aqs name or shell are found in the file\&. If not a full pathname, then hushed mode will be enabled if the file exists in the user\*(Aqs home directory\&.
+.RE
+.PP
+\fBISSUE_FILE\fR (string)
+.RS 4
+如果定义了，此文件将在每次的登录提示之前现实。
+.RE
+.PP
+\fBKILLCHAR\fR (number)
+.RS 4
+Terminal KILL character (\fI025\fR
+= CTRL/U)\&.
+.sp
+此值可以使用前缀\(lq0\(rq表示八进制，\(lq0x\(rq表示十六进制。
+.RE
+.PP
+\fBLASTLOG_ENAB\fR (boolean)
+.RS 4
+允许记录和显示 /var/log/lastlog 登录时间信息。
+.RE
+.PP
+\fBLASTLOG_UID_MAX\fR (number)
+.RS 4
+Highest user ID number for which the lastlog entries should be updated\&. As higher user IDs are usually tracked by remote user identity and authentication services there is no need to create a huge sparse lastlog file for them\&.
+.sp
+No
+\fBLASTLOG_UID_MAX\fR
+option present in the configuration means that there is no user ID limit for writing lastlog entries\&.
+.RE
+.PP
+\fBLOG_OK_LOGINS\fR (boolean)
+.RS 4
+允许记录成功登录。
+.RE
+.PP
+\fBLOG_UNKFAIL_ENAB\fR (boolean)
+.RS 4
+在记录到登录失败时，允许记录未知用户名。
+.sp
+注意：如果用户不小心将密码输入到了登录名中，记录未知用户名可能是一个安全隐患。
+.RE
+.PP
+\fBLOGIN_RETRIES\fR (number)
+.RS 4
+密码错误时，重试的最大次数。
+.RE
+.PP
+\fBLOGIN_STRING\fR (string)
+.RS 4
+此字符串用于提示输入密码。默认是 "Password: "，或者翻译了的结果(汉语中翻译为了\(lq密码：\(rq)。如果设置了此变量，提示不会被翻译。
+.sp
+If the string contains
+\fI%s\fR, this will be replaced by the user\*(Aqs name\&.
+.RE
+.PP
+\fBLOGIN_TIMEOUT\fR (number)
+.RS 4
+最大登录时间(以秒为单位)。
+.RE
+.PP
+\fBMAIL_CHECK_ENAB\fR (boolean)
+.RS 4
+启用登录时检查和现实邮箱状态。
+.sp
+如果 shell 的启动文件已经检查了邮件("mailx \-e" 或者其它同功能的工具)，您应该禁用它。
+.RE
+.PP
+\fBMAIL_DIR\fR (string)
+.RS 4
+邮箱目录。修改或删除用户账户时需要处理邮箱，如果没有指定，将使用编译时指定的默认值。
+.RE
+.PP
+\fBMAIL_FILE\fR (string)
+.RS 4
+定义用户邮箱文件的位置(相对于主目录)。
+.RE
+.PP
+The
+\fBMAIL_DIR\fR
+and
+\fBMAIL_FILE\fR
+variables are used by
+\fBuseradd\fR,
+\fBusermod\fR, and
+\fBuserdel\fR
+to create, move, or delete the user\*(Aqs mail spool\&.
+.PP
+If
+\fBMAIL_CHECK_ENAB\fR
+is set to
+\fIyes\fR, they are also used to define the
+\fBMAIL\fR
+environment variable\&.
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.PP
+\fBMD5_CRYPT_ENAB\fR (boolean)
+.RS 4
+Indicate if passwords must be encrypted using the MD5\-based algorithm\&. If set to
+\fIyes\fR, new passwords will be encrypted using the MD5\-based algorithm compatible with the one used by recent releases of FreeBSD\&. It supports passwords of unlimited length and longer salt strings\&. Set to
+\fIno\fR
+if you need to copy encrypted passwords to other systems which don\*(Aqt understand the new algorithm\&. Default is
+\fIno\fR\&.
+.sp
+This variable is superseded by the
+\fBENCRYPT_METHOD\fR
+variable or by any command line option used to configure the encryption algorithm\&.
+.sp
+This variable is deprecated\&. You should use
+\fBENCRYPT_METHOD\fR\&.
+.RE
+.PP
+\fBMOTD_FILE\fR (string)
+.RS 4
+If defined, ":" delimited list of "message of the day" files to be displayed upon login\&.
+.RE
+.PP
+\fBNOLOGINS_FILE\fR (string)
+.RS 4
+If defined, name of file whose presence will inhibit non\-root logins\&. The contents of this file should be a message indicating why logins are inhibited\&.
+.RE
+.PP
+\fBOBSCURE_CHECKS_ENAB\fR (boolean)
+.RS 4
+对密码更改启用附加检查。
+.RE
+.PP
+\fBPASS_ALWAYS_WARN\fR (boolean)
+.RS 4
+如果是 root，警告弱密码，但是仍然允许使用。
+.RE
+.PP
+\fBPASS_CHANGE_TRIES\fR (number)
+.RS 4
+可以尝试更改密码的最大次数(太容易)。
+.RE
+.PP
+\fBPASS_MAX_DAYS\fR (number)
+.RS 4
+一个密码可以使用的最大天数。如果密码比这旧，将会强迫更改密码。如果不指定，就假定为 \-1，这会禁用这个限制。
+.RE
+.PP
+\fBPASS_MIN_DAYS\fR (number)
+.RS 4
+两次更改密码时间的最小间隔。将会拒绝任何早于此的更改密码的尝试。如果不指定，假定为 \-1，将会禁用这个限制。
+.RE
+.PP
+\fBPASS_WARN_AGE\fR (number)
+.RS 4
+密码过期之前给出警告的天数。0 表示只有只在过期的当天警告，负值表示不警告。如果没有指定，不会给警告。
+.RE
+.PP
+\fBPASS_MAX_DAYS\fR,
+\fBPASS_MIN_DAYS\fR
+and
+\fBPASS_WARN_AGE\fR
+are only used at the time of account creation\&. Any changes to these settings won\*(Aqt affect existing accounts\&.
+.PP
+\fBPASS_MAX_LEN\fR (number), \fBPASS_MIN_LEN\fR (number)
+.RS 4
+Number of significant characters in the password for crypt()\&.
+\fBPASS_MAX_LEN\fR
+is 8 by default\&. Don\*(Aqt change unless your crypt() is better\&. This is ignored if
+\fBMD5_CRYPT_ENAB\fR
+set to
+\fIyes\fR\&.
+.RE
+.PP
+\fBPORTTIME_CHECKS_ENAB\fR (boolean)
+.RS 4
+Enable checking of time restrictions specified in
+/etc/porttime\&.
+.RE
+.PP
+\fBQUOTAS_ENAB\fR (boolean)
+.RS 4
+Enable setting of resource limits from
+/etc/limits
+and ulimit, umask, and niceness from the user\*(Aqs passwd gecos field\&.
+.RE
+.PP
+\fBSHA_CRYPT_MIN_ROUNDS\fR (number), \fBSHA_CRYPT_MAX_ROUNDS\fR (number)
+.RS 4
+When
+\fBENCRYPT_METHOD\fR
+is set to
+\fISHA256\fR
+or
+\fISHA512\fR, this defines the number of SHA rounds used by the encryption algorithm by default (when the number of rounds is not specified on the command line)\&.
+.sp
+使用很多轮转，会让暴力破解更加困难。但是需要注意，认证用户时也会需要更多的 CPU 资源。
+.sp
+如果没有指定，libc 会选择默认的轮转数(5000)。
+.sp
+值必须在 1000 \- 999,999,999 之间。
+.sp
+If only one of the
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+or
+\fBSHA_CRYPT_MAX_ROUNDS\fR
+values is set, then this value will be used\&.
+.sp
+If
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+>
+\fBSHA_CRYPT_MAX_ROUNDS\fR, the highest value will be used\&.
+.RE
+.PP
+\fBSULOG_FILE\fR (string)
+.RS 4
+如果定义了，所有的 su 活动都会记录到此文件。
+.RE
+.PP
+\fBSU_NAME\fR (string)
+.RS 4
+如果定义了，就是运行\(lqsu \-\(rq时显示的命令名称。例如，如果定义为\(lqsu\(rq，那么\(lqps\(rq会显示此命令为\(lq\-su\(rq。如果没有定义，\(lqps\(rq将会显示实际执行的 shell，例如类似于\(lq\-sh\(rq。
+.RE
+.PP
+\fBSU_WHEEL_ONLY\fR (boolean)
+.RS 4
+If
+\fIyes\fR, the user must be listed as a member of the first gid 0 group in
+/etc/group
+(called
+\fIroot\fR
+on most Linux systems) to be able to
+\fBsu\fR
+to uid 0 accounts\&. If the group doesn\*(Aqt exist or is empty, no one will be able to
+\fBsu\fR
+to uid 0\&.
+.RE
+.PP
+\fBSUB_GID_MIN\fR (number), \fBSUB_GID_MAX\fR (number), \fBSUB_GID_COUNT\fR (number)
+.RS 4
+If
+/etc/subuid
+exists, the commands
+\fBuseradd\fR
+and
+\fBnewusers\fR
+(unless the user already have subordinate group IDs) allocate
+\fBSUB_GID_COUNT\fR
+unused group IDs from the range
+\fBSUB_GID_MIN\fR
+to
+\fBSUB_GID_MAX\fR
+for each new user\&.
+.sp
+The default values for
+\fBSUB_GID_MIN\fR,
+\fBSUB_GID_MAX\fR,
+\fBSUB_GID_COUNT\fR
+are respectively 100000, 600100000 and 65536\&.
+.RE
+.PP
+\fBSUB_UID_MIN\fR (number), \fBSUB_UID_MAX\fR (number), \fBSUB_UID_COUNT\fR (number)
+.RS 4
+If
+/etc/subuid
+exists, the commands
+\fBuseradd\fR
+and
+\fBnewusers\fR
+(unless the user already have subordinate user IDs) allocate
+\fBSUB_UID_COUNT\fR
+unused user IDs from the range
+\fBSUB_UID_MIN\fR
+to
+\fBSUB_UID_MAX\fR
+for each new user\&.
+.sp
+The default values for
+\fBSUB_UID_MIN\fR,
+\fBSUB_UID_MAX\fR,
+\fBSUB_UID_COUNT\fR
+are respectively 100000, 600100000 and 65536\&.
+.RE
+.PP
+\fBSYS_GID_MAX\fR (number), \fBSYS_GID_MIN\fR (number)
+.RS 4
+Range of group IDs used for the creation of system groups by
+\fBuseradd\fR,
+\fBgroupadd\fR, or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBSYS_GID_MIN\fR
+(resp\&.
+\fBSYS_GID_MAX\fR) is 101 (resp\&.
+\fBGID_MIN\fR\-1)\&.
+.RE
+.PP
+\fBSYS_UID_MAX\fR (number), \fBSYS_UID_MIN\fR (number)
+.RS 4
+Range of user IDs used for the creation of system users by
+\fBuseradd\fR
+or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBSYS_UID_MIN\fR
+(resp\&.
+\fBSYS_UID_MAX\fR) is 101 (resp\&.
+\fBUID_MIN\fR\-1)\&.
+.RE
+.PP
+\fBSYSLOG_SG_ENAB\fR (boolean)
+.RS 4
+Enable "syslog" logging of
+\fBsg\fR
+activity\&.
+.RE
+.PP
+\fBSYSLOG_SU_ENAB\fR (boolean)
+.RS 4
+Enable "syslog" logging of
+\fBsu\fR
+activity \- in addition to sulog file logging\&.
+.RE
+.PP
+\fBTTYGROUP\fR (string), \fBTTYPERM\fR (string)
+.RS 4
+The terminal permissions: the login tty will be owned by the
+\fBTTYGROUP\fR
+group, and the permissions will be set to
+\fBTTYPERM\fR\&.
+.sp
+By default, the ownership of the terminal is set to the user\*(Aqs primary group and the permissions are set to
+\fI0600\fR\&.
+.sp
+\fBTTYGROUP\fR
+can be either the name of a group or a numeric group identifier\&.
+.sp
+If you have a
+\fBwrite\fR
+program which is "setgid" to a special group which owns the terminals, define TTYGROUP to the group number and TTYPERM to 0620\&. Otherwise leave TTYGROUP commented out and assign TTYPERM to either 622 or 600\&.
+.RE
+.PP
+\fBTTYTYPE_FILE\fR (string)
+.RS 4
+If defined, file which maps tty line to TERM environment parameter\&. Each line of the file is in a format something like "vt100 tty01"\&.
+.RE
+.PP
+\fBUID_MAX\fR (number), \fBUID_MIN\fR (number)
+.RS 4
+Range of user IDs used for the creation of regular users by
+\fBuseradd\fR
+or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBUID_MIN\fR
+(resp\&.
+\fBUID_MAX\fR) is 1000 (resp\&. 60000)\&.
+.RE
+.PP
+\fBULIMIT\fR (number)
+.RS 4
+Default
+\fBulimit\fR
+value\&.
+.RE
+.PP
+\fBUMASK\fR (number)
+.RS 4
+文件模式创建掩码初始化为此值。如果没有指定，掩码初始化为 022。
+.sp
+\fBuseradd\fR
+and
+\fBnewusers\fR
+use this mask to set the mode of the home directory they create if
+\fBHOME_MODE\fR
+is not set\&.
+.sp
+It is also used by
+\fBlogin\fR
+to define users\*(Aq initial umask\&. Note that this mask can be overridden by the user\*(Aqs GECOS line (if
+\fBQUOTAS_ENAB\fR
+is set) or by the specification of a limit with the
+\fIK\fR
+identifier in
+\fBlimits\fR(5)\&.
+.RE
+.PP
+\fBUSERDEL_CMD\fR (string)
+.RS 4
+如果定义了，这是删除账户时执行的命令。它应该移除所有属于此用户的的 at/cron/print 等作业(作为第一个参数传递)。
+.sp
+这个脚本的返回值并不被带到账户中去。
+.sp
+Here is an example script, which removes the user\*(Aqs cron, at and print jobs:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+#! /bin/sh
+
+# Check for the required argument\&.
+if [ $# != 1 ]; then
+	echo "Usage: $0 username"
+	exit 1
+fi
+
+# Remove cron jobs\&.
+crontab \-r \-u $1
+
+# Remove at jobs\&.
+# Note that it will remove any jobs owned by the same UID,
+# even if it was shared by a different username\&.
+AT_SPOOL_DIR=/var/spool/cron/atjobs
+find $AT_SPOOL_DIR \-name "[^\&.]*" \-type f \-user $1 \-delete \e;
+
+# Remove print jobs\&.
+lprm $1
+
+# All done\&.
+exit 0
+      
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+.RE
+.PP
+\fBUSERGROUPS_ENAB\fR (boolean)
+.RS 4
+如果 uid 和 gid 相同，用户名和主用户名也相同，使非 root 组的组掩码位和属主位相同 (如：022 \-> 002, 077 \-> 007)。
+.sp
+If set to
+\fIyes\fR,
+\fBuserdel\fR
+will remove the user\*(Aqs group if it contains no more members, and
+\fBuseradd\fR
+will create by default a group with the name of the user\&.
+.RE
+.SH "交叉引用"
+.PP
+如下交叉引用显示影子密码套件哪个程序使用哪个参数。
+.PP
+chfn
+.RS 4
+CHFN_AUTH
+CHFN_RESTRICT
+LOGIN_STRING
+.RE
+.PP
+chgpasswd
+.RS 4
+ENCRYPT_METHOD MAX_MEMBERS_PER_GROUP MD5_CRYPT_ENAB
+SHA_CRYPT_MAX_ROUNDS SHA_CRYPT_MIN_ROUNDS
+.RE
+.PP
+chpasswd
+.RS 4
+ENCRYPT_METHOD MD5_CRYPT_ENAB
+SHA_CRYPT_MAX_ROUNDS SHA_CRYPT_MIN_ROUNDS
+.RE
+.PP
+chsh
+.RS 4
+CHSH_AUTH LOGIN_STRING
+.RE
+.PP
+gpasswd
+.RS 4
+ENCRYPT_METHOD MAX_MEMBERS_PER_GROUP MD5_CRYPT_ENAB
+SHA_CRYPT_MAX_ROUNDS SHA_CRYPT_MIN_ROUNDS
+.RE
+.PP
+groupadd
+.RS 4
+GID_MAX GID_MIN MAX_MEMBERS_PER_GROUP SYS_GID_MAX SYS_GID_MIN
+.RE
+.PP
+groupdel
+.RS 4
+MAX_MEMBERS_PER_GROUP
+.RE
+.PP
+groupmems
+.RS 4
+MAX_MEMBERS_PER_GROUP
+.RE
+.PP
+groupmod
+.RS 4
+MAX_MEMBERS_PER_GROUP
+.RE
+.PP
+grpck
+.RS 4
+MAX_MEMBERS_PER_GROUP
+.RE
+.PP
+grpconv
+.RS 4
+MAX_MEMBERS_PER_GROUP
+.RE
+.PP
+grpunconv
+.RS 4
+MAX_MEMBERS_PER_GROUP
+.RE
+.PP
+lastlog
+.RS 4
+LASTLOG_UID_MAX
+.RE
+.PP
+login
+.RS 4
+CONSOLE
+CONSOLE_GROUPS DEFAULT_HOME
+ENV_HZ ENV_PATH ENV_SUPATH ENV_TZ ENVIRON_FILE
+ERASECHAR FAIL_DELAY
+FAILLOG_ENAB
+FAKE_SHELL
+FTMP_FILE
+HUSHLOGIN_FILE
+ISSUE_FILE
+KILLCHAR
+LASTLOG_ENAB LASTLOG_UID_MAX
+LOGIN_RETRIES
+LOGIN_STRING
+LOGIN_TIMEOUT LOG_OK_LOGINS LOG_UNKFAIL_ENAB
+MAIL_CHECK_ENAB MAIL_DIR MAIL_FILE MOTD_FILE NOLOGINS_FILE PORTTIME_CHECKS_ENAB QUOTAS_ENAB
+TTYGROUP TTYPERM TTYTYPE_FILE
+ULIMIT UMASK
+USERGROUPS_ENAB
+.RE
+.PP
+newgrp / sg
+.RS 4
+SYSLOG_SG_ENAB
+.RE
+.PP
+newusers
+.RS 4
+ENCRYPT_METHOD GID_MAX GID_MIN MAX_MEMBERS_PER_GROUP MD5_CRYPT_ENAB HOME_MODE PASS_MAX_DAYS PASS_MIN_DAYS PASS_WARN_AGE
+SHA_CRYPT_MAX_ROUNDS SHA_CRYPT_MIN_ROUNDS
+SUB_GID_COUNT SUB_GID_MAX SUB_GID_MIN SUB_UID_COUNT SUB_UID_MAX SUB_UID_MIN SYS_GID_MAX SYS_GID_MIN SYS_UID_MAX SYS_UID_MIN UID_MAX UID_MIN UMASK
+.RE
+.PP
+passwd
+.RS 4
+ENCRYPT_METHOD MD5_CRYPT_ENAB OBSCURE_CHECKS_ENAB PASS_ALWAYS_WARN PASS_CHANGE_TRIES PASS_MAX_LEN PASS_MIN_LEN
+SHA_CRYPT_MAX_ROUNDS SHA_CRYPT_MIN_ROUNDS
+.RE
+.PP
+pwck
+.RS 4
+PASS_MAX_DAYS PASS_MIN_DAYS PASS_WARN_AGE
+.RE
+.PP
+pwconv
+.RS 4
+PASS_MAX_DAYS PASS_MIN_DAYS PASS_WARN_AGE
+.RE
+.PP
+su
+.RS 4
+CONSOLE
+CONSOLE_GROUPS DEFAULT_HOME
+ENV_HZ ENVIRON_FILE
+ENV_PATH ENV_SUPATH
+ENV_TZ LOGIN_STRING MAIL_CHECK_ENAB MAIL_DIR MAIL_FILE QUOTAS_ENAB
+SULOG_FILE SU_NAME
+SU_WHEEL_ONLY
+SYSLOG_SU_ENAB
+USERGROUPS_ENAB
+.RE
+.PP
+sulogin
+.RS 4
+ENV_HZ
+ENV_TZ
+.RE
+.PP
+useradd
+.RS 4
+CREATE_HOME GID_MAX GID_MIN HOME_MODE LASTLOG_UID_MAX MAIL_DIR MAX_MEMBERS_PER_GROUP PASS_MAX_DAYS PASS_MIN_DAYS PASS_WARN_AGE SUB_GID_COUNT SUB_GID_MAX SUB_GID_MIN SUB_UID_COUNT SUB_UID_MAX SUB_UID_MIN SYS_GID_MAX SYS_GID_MIN SYS_UID_MAX SYS_UID_MIN UID_MAX UID_MIN UMASK
+.RE
+.PP
+userdel
+.RS 4
+MAIL_DIR MAIL_FILE MAX_MEMBERS_PER_GROUP USERDEL_CMD USERGROUPS_ENAB
+.RE
+.PP
+usermod
+.RS 4
+LASTLOG_UID_MAX MAIL_DIR MAIL_FILE MAX_MEMBERS_PER_GROUP
+.RE
+.SH "参见"
+.PP
+\fBlogin\fR(1),
+\fBpasswd\fR(1),
+\fBsu\fR(1),
+\fBpasswd\fR(5),
+\fBshadow\fR(5),
+\fBpam\fR(8)\&.
diff --git a/man/zh_CN/man5/passwd.5 b/man/zh_CN/man5/passwd.5
new file mode 100644
index 0000000..6bd853b
--- /dev/null
+++ b/man/zh_CN/man5/passwd.5
@@ -0,0 +1,193 @@
+'\" t
+.\"     Title: passwd
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 文件格式和转化
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "PASSWD" "5" "2020-01-23" "shadow\-utils 4\&.8\&.1" "文件格式和转化"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+passwd \- 密码文件
+.SH "描述"
+.PP
+/etc/passwd
+contains one line for each user account, with seven fields delimited by colons (\(lq:\(rq)\&. These fields are:
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+登录名
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+可选的加密后的密码
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+数字用户 ID
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+数字组 ID
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+用户名和注释字段
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+用户主目录
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+可选的用户命令解释器
+.RE
+.PP
+If the
+\fIpassword\fR
+field is a lower\-case
+\(lqx\(rq, then the encrypted password is actually stored in the
+\fBshadow\fR(5)
+file instead; there
+\fImust\fR
+be a corresponding line in the
+/etc/shadow
+file, or else the user account is invalid\&.
+.PP
+The encrypted
+\fIpassword\fR
+field may be empty, in which case no password is required to authenticate as the specified login name\&. However, some applications which read the
+/etc/passwd
+file may decide not to permit
+\fIany\fR
+access at all if the
+\fIpassword\fR
+field is blank\&.
+.PP
+A
+\fIpassword\fR
+field which starts with an exclamation mark means that the password is locked\&. The remaining characters on the line represent the
+\fIpassword\fR
+field before the password was locked\&.
+.PP
+Refer to
+\fBcrypt\fR(3)
+for details on how this string is interpreted\&.
+.PP
+If the password field contains some string that is not a valid result of
+\fBcrypt\fR(3), for instance ! or *, the user will not be able to use a unix password to log in (but the user may log in the system by other means)\&.
+.PP
+The comment field is used by various system utilities, such as
+\fBfinger\fR(1)\&.
+.PP
+The home directory field provides the name of the initial working directory\&. The
+\fBlogin\fR
+program uses this information to set the value of the
+\fB$HOME\fR
+environmental variable\&.
+.PP
+The command interpreter field provides the name of the user\*(Aqs command language interpreter, or the name of the initial program to execute\&. The
+\fBlogin\fR
+program uses this information to set the value of the
+\fB$SHELL\fR
+environmental variable\&. If this field is empty, it defaults to the value
+/bin/sh\&.
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+可选的加密后的密码文件
+.RE
+.PP
+/etc/passwd\-
+.RS 4
+/etc/passwd 的备份文件。
+.sp
+注意，此文件由 shadow 工具集使用，而不是所有的用户和密码管理工具都会使用。
+.RE
+.SH "参见"
+.PP
+\fBcrypt\fR(3),
+\fBgetent\fR(1),
+\fBgetpwnam\fR(3),
+\fBlogin\fR(1),
+\fBpasswd\fR(1),
+\fBpwck\fR(8),
+\fBpwconv\fR(8),
+\fBpwunconv\fR(8),
+\fBshadow\fR(5),
+\fBsu\fR(1),
+\fBsulogin\fR(8)\&.
diff --git a/man/zh_CN/man5/porttime.5 b/man/zh_CN/man5/porttime.5
new file mode 100644
index 0000000..3fcc951
--- /dev/null
+++ b/man/zh_CN/man5/porttime.5
@@ -0,0 +1,96 @@
+'\" t
+.\"     Title: porttime
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 文件格式和转化
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "PORTTIME" "5" "2020-01-23" "shadow\-utils 4\&.8\&.1" "文件格式和转化"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+porttime \- 端口访问时间文件
+.SH "描述"
+.PP
+\fIporttime\fR
+contains a list of tty devices, user names, and permitted login times\&.
+.PP
+每项包含三个由冒号分隔的字段。第一个字段是逗号分隔的 tty 设备列表，或者星号表示匹配所有终端。第二个字段是逗号分隔的用户名列表，或者星号表示匹配所有用户名。第三个字段是逗号分隔的访问许可时间。
+.PP
+Each access time entry consists of zero or more days of the week, abbreviated
+\fISu\fR,
+\fIMo\fR,
+\fITu\fR,
+\fIWe\fR,
+\fITh\fR,
+\fIFr\fR, and
+\fISa\fR, followed by a pair of times separated by a hyphen\&. The abbreviation
+\fIWk\fR
+may be used to represent Monday thru Friday, and
+\fIAl\fR
+may be used to indicate every day\&. If no days are given,
+\fIAl\fR
+is assumed\&.
+.SH "示例"
+.PP
+The following entry allows access to user
+\fBjfh\fR
+on every port during weekdays from 9am to 5pm\&.
+.PP
+*:jfh:Wk0900\-1700
+.PP
+The following entries allow access only to the users
+\fIroot\fR
+and
+\fIoper\fR
+on
+/dev/console
+at any time\&. This illustrates how the
+/etc/porttime
+file is an ordered list of access times\&. Any other user would match the second entry which does not permit access at any time\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+      console:root,oper:Al0000\-2400
+      console:*:
+    
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+The following entry allows access for the user
+\fIgames\fR
+on any port during non\-working hours\&.
+.PP
+*:games:Wk1700\-0900,SaSu0000\-2400
+.SH "文件"
+.PP
+/etc/porttime
+.RS 4
+包含了端口访问信息的文件。
+.RE
+.SH "参见"
+.PP
+\fBlogin\fR(1)\&.
diff --git a/man/zh_CN/man5/shadow.5 b/man/zh_CN/man5/shadow.5
new file mode 100644
index 0000000..4c9fe5c
--- /dev/null
+++ b/man/zh_CN/man5/shadow.5
@@ -0,0 +1,148 @@
+'\" t
+.\"     Title: shadow
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 文件格式和转化
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "SHADOW" "5" "2020-01-23" "shadow\-utils 4\&.8\&.1" "文件格式和转化"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+shadow \- 影子化了的密码文件
+.SH "描述"
+.PP
+shadow
+is a file which contains the password information for the system\*(Aqs accounts and optional aging information\&.
+.PP
+如果没有维护好密码安全，此文件绝对不能让普通用户可读。
+.PP
+Each line of this file contains 9 fields, separated by colons (\(lq:\(rq), in the following order:
+.PP
+\fB登录名\fR
+.RS 4
+必须是有效的账户名，且已经存在于系统中。
+.RE
+.PP
+\fB加密了的密码\fR
+.RS 4
+This field may be empty, in which case no passwords are required to authenticate as the specified login name\&. However, some applications which read the
+/etc/shadow
+file may decide not to permit any access at all if the password field is empty\&.
+.sp
+A password field which starts with an exclamation mark means that the password is locked\&. The remaining characters on the line represent the password field before the password was locked\&.
+.sp
+Refer to
+\fBcrypt\fR(3)
+for details on how this string is interpreted\&.
+.sp
+If the password field contains some string that is not a valid result of
+\fBcrypt\fR(3), for instance ! or *, the user will not be able to use a unix password to log in (but the user may log in the system by other means)\&.
+.RE
+.PP
+\fB最后一次更改密码的日期\fR
+.RS 4
+最近一次更改密码的时间，表示从1970年1月1日开始的天数。
+.sp
+The value 0 has a special meaning, which is that the user should change her password the next time she will log in the system\&.
+.sp
+空字段表示密码年龄功能被禁用。
+.RE
+.PP
+\fB密码的最小年龄\fR
+.RS 4
+最小密码年龄是指，用户一次更改密码之后，要等多长时间才再次被允许更改密码。
+.sp
+空字段或 0 表示没有最小密码年龄。
+.RE
+.PP
+\fB最大密码年龄\fR
+.RS 4
+最大密码年龄是指，这写天之后，用户必须更改密码。
+.sp
+这写天之后，密码仍然可用。用户将会在下次登录的时候被要求更改密码。
+.sp
+空字段表示没有最大密码年龄，没有密码警告时间段，没有密码禁用时间段(请看下边)。
+.sp
+如果最大密码年龄小于最小密码年龄，用户将会不能更改密码。
+.RE
+.PP
+\fB密码警告时间段\fR
+.RS 4
+密码过期之前，提前警告用户的的天数(请参考上边的密码的最大年龄)。
+.sp
+空字段或者 0 表示没有密码警告期。
+.RE
+.PP
+\fB密码禁用期\fR
+.RS 4
+密码过期(查看上边的密码最大年龄)后，仍然接受此密码的天数(在此期间，用户应该在下次登录时修改密码)。
+.sp
+密码到期并且过了这个宽限期之后，使用用户的当前的密码将会不能登录。用户需要联系系统管理员。
+.sp
+空字段表示没有强制密码过期。
+.RE
+.PP
+\fB账户过期日期\fR
+.RS 4
+账户过期的日期，表示从1970年1月1日开始的天数。
+.sp
+Note that an account expiration differs from a password expiration\&. In case of an account expiration, the user shall not be allowed to login\&. In case of a password expiration, the user is not allowed to login using her password\&.
+.sp
+空字段表示账户永不过期。
+.sp
+应该避免使用 0，因为它既能理解成永不过期也能理解成在1970年1月1日过期。
+.RE
+.PP
+\fB保留字段\fR
+.RS 4
+此字段保留作将来使用。
+.RE
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.PP
+/etc/shadow\-
+.RS 4
+/etc/shadow 的备份文件。
+.sp
+注意，此文件由 shadow 工具集使用，而不是所有的用户和密码管理工具都会使用。
+.RE
+.SH "参见"
+.PP
+\fBchage\fR(1),
+\fBlogin\fR(1),
+\fBpasswd\fR(1),
+\fBpasswd\fR(5),
+\fBpwck\fR(8),
+\fBpwconv\fR(8),
+\fBpwunconv\fR(8),
+\fBsu\fR(1),
+\fBsulogin\fR(8)\&.
diff --git a/man/zh_CN/man5/suauth.5 b/man/zh_CN/man5/suauth.5
new file mode 100644
index 0000000..1a1de53
--- /dev/null
+++ b/man/zh_CN/man5/suauth.5
@@ -0,0 +1,146 @@
+'\" t
+.\"     Title: suauth
+.\"    Author: Marek Micha\(/lkiewicz
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 文件格式和转化
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "SUAUTH" "5" "2020-01-23" "shadow\-utils 4\&.8\&.1" "文件格式和转化"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+suauth \- 详细的 su 控制文件
+.SH "大纲"
+.HP \w'\fB/etc/suauth\fR\ 'u
+\fB/etc/suauth\fR
+.SH "描述"
+.PP
+The file
+/etc/suauth
+is referenced whenever the su command is called\&. It can change the behaviour of the su command, based upon:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+      1) the user su is targeting
+    
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+2) 执行 su 命令的用户 (或者他可能属于的组)
+.PP
+文件格式为：以 # 开头的行视为注视，并被忽略；
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+      to\-id:from\-id:ACTION
+    
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+Where to\-id is either the word
+\fIALL\fR, a list of usernames delimited by "," or the words
+\fIALL EXCEPT\fR
+followed by a list of usernames delimited by ","\&.
+.PP
+from\-id is formatted the same as to\-id except the extra word
+\fIGROUP\fR
+is recognized\&.
+\fIALL EXCEPT GROUP\fR
+is perfectly valid too\&. Following
+\fIGROUP\fR
+appears one or more group names, delimited by ","\&. It is not sufficient to have primary group id of the relevant group, an entry in
+\fB/etc/group\fR(5)
+is necessary\&.
+.PP
+动作只可以使用如下当前支持的选项。
+.PP
+\fIDENY\fR
+.RS 4
+su 的尝试在询问密码之前就被拒绝。
+.RE
+.PP
+\fINOPASS\fR
+.RS 4
+su 尝试自动成功，而且不询问密码。
+.RE
+.PP
+\fIOWNPASS\fR
+.RS 4
+为了成功执行 su，用户必须提供自己的密码。将会提示他们这样。
+.RE
+.PP
+注意，有三个用冒号分割的字段。冒号旁边不能有空格。也请注意，这个文件会被一行一行地依次检查，会使用第一个可用的规则，而不会继续检查文件。这可以让系统管理员使系统尽量符合其期望。
+.SH "示例"
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+      # sample /etc/suauth file
+      #
+      # A couple of privileged usernames may
+      # su to root with their own password\&.
+      #
+      root:chris,birddog:OWNPASS
+      #
+      # Anyone else may not su to root unless in
+      # group wheel\&. This is how BSD does things\&.
+      #
+      root:ALL EXCEPT GROUP wheel:DENY
+      #
+      # Perhaps terry and birddog are accounts
+      # owned by the same person\&.
+      # Access can be arranged between them
+      # with no password\&.
+      #
+      terry:birddog:NOPASS
+      birddog:terry:NOPASS
+      #
+    
+.fi
+.if n \{\
+.RE
+.\}
+.SH "文件"
+.PP
+/etc/suauth
+.RS 4
+.RE
+.SH "缺陷"
+.PP
+可能会有很多潜在问题。文件解析器尤其不能容忍语法错误，不能有无意义的空白符(除了行首和行尾)，并且使用特定的标记分割不同的事情。
+.SH "DIAGNOSTICS"
+.PP
+An error parsing the file is reported using
+\fBsyslogd\fR(8)
+as level ERR on facility AUTH\&.
+.SH "参见"
+.PP
+\fBsu\fR(1)\&.
diff --git a/man/zh_CN/man8/chgpasswd.8 b/man/zh_CN/man8/chgpasswd.8
new file mode 100644
index 0000000..ff0204e
--- /dev/null
+++ b/man/zh_CN/man8/chgpasswd.8
@@ -0,0 +1,208 @@
+'\" t
+.\"     Title: chgpasswd
+.\"    Author: Thomas K\(/loczko <kloczek@pld.org.pl>
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "CHGPASSWD" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+chgpasswd \- 批量更新组密码
+.SH "大纲"
+.HP \w'\fBchgpasswd\fR\ 'u
+\fBchgpasswd\fR [\fI选项\fR]
+.SH "描述"
+.PP
+The
+\fBchgpasswd\fR
+command reads a list of group name and password pairs from standard input and uses this information to update a set of existing groups\&. Each line is of the format:
+.PP
+\fIgroup_name\fR:\fIpassword\fR
+.PP
+By default the supplied password must be in clear\-text, and is encrypted by
+\fBchgpasswd\fR\&.
+.PP
+The default encryption algorithm can be defined for the system with the
+\fBENCRYPT_METHOD\fR
+variable of
+/etc/login\&.defs, and can be overwritten with the
+\fB\-e\fR,
+\fB\-m\fR, or
+\fB\-c\fR
+options\&.
+.PP
+此命令一般用于需要一次创建很多用户的大型系统。
+.SH "选项"
+.PP
+The options which apply to the
+\fBchgpasswd\fR
+command are:
+.PP
+\fB\-c\fR, \fB\-\-crypt\-method\fR
+.RS 4
+使用指定的方法加密密码。
+.sp
+可用的方法有 DES, MD5, NONE, and SHA256 或 SHA512，前提是您的 libc 支持这写方法。
+.RE
+.PP
+\fB\-e\fR, \fB\-\-encrypted\fR
+.RS 4
+提供的密码是已经加密了的
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-m\fR, \fB\-\-md5\fR
+.RS 4
+如果提供的密码没有加密，则使用 MD5 加密而不是 DES。
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-s\fR, \fB\-\-sha\-rounds\fR
+.RS 4
+使用指定次数的轮转来加密密码。
+.sp
+值 0 表示让系统为加密方法选择默认的轮转次数 (5000)。
+.sp
+会强制最小 1,000，最大 9,9999,9999
+.sp
+您只可以对 SHA256 或 SHA512 使用此选项。
+.sp
+By default, the number of rounds is defined by the SHA_CRYPT_MIN_ROUNDS and SHA_CRYPT_MAX_ROUNDS variables in
+/etc/login\&.defs\&.
+.RE
+.SH "CAVEATS"
+.PP
+记住要设置权限或者掩码来阻止其它用户对未加密文件的读取。
+.PP
+您需要确保你吗和加密方法符合系统的密码策略。
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBENCRYPT_METHOD\fR (string)
+.RS 4
+这定义了系统加密密码的默认算法(如果没有在命令行上指定算法)。
+.sp
+It can take one of these values:
+\fIDES\fR
+(default),
+\fIMD5\fR, \fISHA256\fR, \fISHA512\fR\&.
+.sp
+Note: this parameter overrides the
+\fBMD5_CRYPT_ENAB\fR
+variable\&.
+.RE
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.PP
+\fBMD5_CRYPT_ENAB\fR (boolean)
+.RS 4
+Indicate if passwords must be encrypted using the MD5\-based algorithm\&. If set to
+\fIyes\fR, new passwords will be encrypted using the MD5\-based algorithm compatible with the one used by recent releases of FreeBSD\&. It supports passwords of unlimited length and longer salt strings\&. Set to
+\fIno\fR
+if you need to copy encrypted passwords to other systems which don\*(Aqt understand the new algorithm\&. Default is
+\fIno\fR\&.
+.sp
+This variable is superseded by the
+\fBENCRYPT_METHOD\fR
+variable or by any command line option used to configure the encryption algorithm\&.
+.sp
+This variable is deprecated\&. You should use
+\fBENCRYPT_METHOD\fR\&.
+.RE
+.PP
+\fBSHA_CRYPT_MIN_ROUNDS\fR (number), \fBSHA_CRYPT_MAX_ROUNDS\fR (number)
+.RS 4
+When
+\fBENCRYPT_METHOD\fR
+is set to
+\fISHA256\fR
+or
+\fISHA512\fR, this defines the number of SHA rounds used by the encryption algorithm by default (when the number of rounds is not specified on the command line)\&.
+.sp
+使用很多轮转，会让暴力破解更加困难。但是需要注意，认证用户时也会需要更多的 CPU 资源。
+.sp
+如果没有指定，libc 会选择默认的轮转数(5000)。
+.sp
+值必须在 1000 \- 999,999,999 之间。
+.sp
+If only one of the
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+or
+\fBSHA_CRYPT_MAX_ROUNDS\fR
+values is set, then this value will be used\&.
+.sp
+If
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+>
+\fBSHA_CRYPT_MAX_ROUNDS\fR, the highest value will be used\&.
+.RE
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.SH "参见"
+.PP
+\fBgpasswd\fR(1),
+\fBgroupadd\fR(8),
+\fBlogin.defs\fR(5)\&.
diff --git a/man/zh_CN/man8/chpasswd.8 b/man/zh_CN/man8/chpasswd.8
new file mode 100644
index 0000000..b26ed56
--- /dev/null
+++ b/man/zh_CN/man8/chpasswd.8
@@ -0,0 +1,212 @@
+'\" t
+.\"     Title: chpasswd
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "CHPASSWD" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+chpasswd \- 批量更新密码
+.SH "大纲"
+.HP \w'\fBchpasswd\fR\ 'u
+\fBchpasswd\fR [\fI选项\fR]
+.SH "描述"
+.PP
+The
+\fBchpasswd\fR
+command reads a list of user name and password pairs from standard input and uses this information to update a group of existing users\&. Each line is of the format:
+.PP
+\fIuser_name\fR:\fIpassword\fR
+.PP
+By default the passwords must be supplied in clear\-text, and are encrypted by
+\fBchpasswd\fR\&. Also the password age will be updated, if present\&.
+.PP
+The default encryption algorithm can be defined for the system with the
+\fBENCRYPT_METHOD\fR
+or
+\fBMD5_CRYPT_ENAB\fR
+variables of
+/etc/login\&.defs, and can be overwritten with the
+\fB\-e\fR,
+\fB\-m\fR, or
+\fB\-c\fR
+options\&.
+.PP
+\fBchpasswd\fR
+first updates all the passwords in memory, and then commits all the changes to disk if no errors occurred for any user\&.
+.PP
+此命令一般用于需要一次创建很多用户的大型系统。
+.SH "选项"
+.PP
+The options which apply to the
+\fBchpasswd\fR
+command are:
+.PP
+\fB\-c\fR, \fB\-\-crypt\-method\fR\ \&\fIMETHOD\fR
+.RS 4
+使用指定的方法加密密码。
+.sp
+可用的方法有 DES, MD5, NONE, and SHA256 或 SHA512，前提是您的 libc 支持这写方法。
+.sp
+By default (if none of the
+\fB\-c\fR,
+\fB\-m\fR, or
+\fB\-e\fR
+options are specified), the encryption method is defined by the
+\fBENCRYPT_METHOD\fR
+or
+\fBMD5_CRYPT_ENAB\fR
+variables of
+/etc/login\&.defs\&.
+.RE
+.PP
+\fB\-e\fR, \fB\-\-encrypted\fR
+.RS 4
+提供的密码是已经加密了的
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-m\fR, \fB\-\-md5\fR
+.RS 4
+如果提供的密码没有加密，则使用 MD5 加密而不是 DES。
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-s\fR, \fB\-\-sha\-rounds\fR\ \&\fIROUNDS\fR
+.RS 4
+使用指定次数的轮转来加密密码。
+.sp
+值 0 表示让系统为加密方法选择默认的轮转次数 (5000)。
+.sp
+会强制最小 1,000，最大 9,9999,9999
+.sp
+您只可以对 SHA256 或 SHA512 使用此选项。
+.sp
+By default, the number of rounds is defined by the
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+and
+\fBSHA_CRYPT_MAX_ROUNDS\fR
+variables in
+/etc/login\&.defs\&.
+.RE
+.SH "CAVEATS"
+.PP
+记住要设置权限或者掩码来阻止其它用户对未加密文件的读取。
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBENCRYPT_METHOD\fR (string)
+.RS 4
+这定义了系统加密密码的默认算法(如果没有在命令行上指定算法)。
+.sp
+It can take one of these values:
+\fIDES\fR
+(default),
+\fIMD5\fR, \fISHA256\fR, \fISHA512\fR\&.
+.sp
+Note: this parameter overrides the
+\fBMD5_CRYPT_ENAB\fR
+variable\&.
+.RE
+.PP
+\fBMD5_CRYPT_ENAB\fR (boolean)
+.RS 4
+Indicate if passwords must be encrypted using the MD5\-based algorithm\&. If set to
+\fIyes\fR, new passwords will be encrypted using the MD5\-based algorithm compatible with the one used by recent releases of FreeBSD\&. It supports passwords of unlimited length and longer salt strings\&. Set to
+\fIno\fR
+if you need to copy encrypted passwords to other systems which don\*(Aqt understand the new algorithm\&. Default is
+\fIno\fR\&.
+.sp
+This variable is superseded by the
+\fBENCRYPT_METHOD\fR
+variable or by any command line option used to configure the encryption algorithm\&.
+.sp
+This variable is deprecated\&. You should use
+\fBENCRYPT_METHOD\fR\&.
+.RE
+.PP
+\fBSHA_CRYPT_MIN_ROUNDS\fR (number), \fBSHA_CRYPT_MAX_ROUNDS\fR (number)
+.RS 4
+When
+\fBENCRYPT_METHOD\fR
+is set to
+\fISHA256\fR
+or
+\fISHA512\fR, this defines the number of SHA rounds used by the encryption algorithm by default (when the number of rounds is not specified on the command line)\&.
+.sp
+使用很多轮转，会让暴力破解更加困难。但是需要注意，认证用户时也会需要更多的 CPU 资源。
+.sp
+如果没有指定，libc 会选择默认的轮转数(5000)。
+.sp
+值必须在 1000 \- 999,999,999 之间。
+.sp
+If only one of the
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+or
+\fBSHA_CRYPT_MAX_ROUNDS\fR
+values is set, then this value will be used\&.
+.sp
+If
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+>
+\fBSHA_CRYPT_MAX_ROUNDS\fR, the highest value will be used\&.
+.RE
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.SH "参见"
+.PP
+\fBpasswd\fR(1),
+\fBnewusers\fR(8),
+\fBlogin.defs\fR(5),
+\fBuseradd\fR(8)\&.
diff --git a/man/zh_CN/man8/faillog.8 b/man/zh_CN/man8/faillog.8
new file mode 100644
index 0000000..50b154b
--- /dev/null
+++ b/man/zh_CN/man8/faillog.8
@@ -0,0 +1,165 @@
+'\" t
+.\"     Title: faillog
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "FAILLOG" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+faillog \- 显示登录失败记录或设置登录失败限制
+.SH "大纲"
+.HP \w'\fBfaillog\fR\ 'u
+\fBfaillog\fR [\fI选项\fR]
+.SH "描述"
+.PP
+\fBfaillog\fR
+displays the contents of the failure log database (/var/log/faillog)\&. It can also set the failure counters and limits\&. When
+\fBfaillog\fR
+is run without arguments, it only displays the faillog records of the users who had a login failure\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBfaillog\fR
+command are:
+.PP
+\fB\-a\fR, \fB\-\-all\fR
+.RS 4
+Display (or act on) faillog records for all users having an entry in the
+faillog
+database\&.
+.sp
+The range of users can be restricted with the
+\fB\-u\fR
+option\&.
+.sp
+In display mode, this is still restricted to existing users but forces the display of the faillog entries even if they are empty\&.
+.sp
+With the
+\fB\-l\fR,
+\fB\-m\fR,
+\fB\-r\fR,
+\fB\-t\fR
+options, the users\*(Aq records are changed, even if the user does not exist on the system\&. This is useful to reset records of users that have been deleted or to set a policy in advance for a range of users\&.
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-l\fR, \fB\-\-lock\-secs\fR\ \&\fISEC\fR
+.RS 4
+Lock account for
+\fISEC\fR
+seconds after failed login\&.
+.sp
+Write access to
+/var/log/faillog
+is required for this option\&.
+.RE
+.PP
+\fB\-m\fR, \fB\-\-maximum\fR\ \&\fIMAX\fR
+.RS 4
+Set the maximum number of login failures after the account is disabled to
+\fIMAX\fR\&.
+.sp
+Selecting a
+\fIMAX\fR
+value of 0 has the effect of not placing a limit on the number of failed logins\&.
+.sp
+The maximum failure count should always be 0 for
+\fIroot\fR
+to prevent a denial of services attack against the system\&.
+.sp
+Write access to
+/var/log/faillog
+is required for this option\&.
+.RE
+.PP
+\fB\-r\fR, \fB\-\-reset\fR
+.RS 4
+重置登录失败计数。
+.sp
+Write access to
+/var/log/faillog
+is required for this option\&.
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-t\fR, \fB\-\-time\fR\ \&\fIDAYS\fR
+.RS 4
+Display faillog records more recent than
+\fIDAYS\fR\&.
+.RE
+.PP
+\fB\-u\fR, \fB\-\-user\fR\ \&\fILOGIN\fR|\fIRANGE\fR
+.RS 4
+Display faillog record or maintains failure counters and limits (if used with
+\fB\-l\fR,
+\fB\-m\fR
+or
+\fB\-r\fR
+options) only for the specified user(s)\&.
+.sp
+The users can be specified by a login name, a numerical user ID, or a
+\fIRANGE\fR
+of users\&. This
+\fIRANGE\fR
+of users can be specified with a min and max values (\fIUID_MIN\-UID_MAX\fR), a max value (\fI\-UID_MAX\fR), or a min value (\fIUID_MIN\-\fR)\&.
+.RE
+.PP
+When none of the
+\fB\-l\fR,
+\fB\-m\fR, or
+\fB\-r\fR
+options are used,
+\fBfaillog\fR
+displays the faillog record of the specified user(s)\&.
+.SH "CAVEATS"
+.PP
+\fBfaillog\fR
+only prints out users with no successful login since the last failure\&. To print out a user who has had a successful login since their last failure, you must explicitly request the user with the
+\fB\-u\fR
+flag, or print out all users with the
+\fB\-a\fR
+flag\&.
+.SH "文件"
+.PP
+/var/log/faillog
+.RS 4
+Failure logging file\&.
+.RE
+.SH "参见"
+.PP
+\fBlogin\fR(1),
+\fBfaillog\fR(5)\&.
diff --git a/man/zh_CN/man8/groupadd.8 b/man/zh_CN/man8/groupadd.8
new file mode 100644
index 0000000..f150550
--- /dev/null
+++ b/man/zh_CN/man8/groupadd.8
@@ -0,0 +1,257 @@
+'\" t
+.\"     Title: groupadd
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "GROUPADD" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+groupadd \- 创建一个新组
+.SH "大纲"
+.HP \w'\fBgroupadd\fR\ 'u
+\fBgroupadd\fR [\fI选项\fR] \fIgroup\fR
+.SH "描述"
+.PP
+The
+\fBgroupadd\fR
+command creates a new group account using the values specified on the command line plus the default values from the system\&. The new group will be entered into the system files as needed\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBgroupadd\fR
+command are:
+.PP
+\fB\-f\fR, \fB\-\-force\fR
+.RS 4
+This option causes the command to simply exit with success status if the specified group already exists\&. When used with
+\fB\-g\fR, and the specified GID already exists, another (unique) GID is chosen (i\&.e\&.
+\fB\-g\fR
+is turned off)\&.
+.RE
+.PP
+\fB\-g\fR, \fB\-\-gid\fR\ \&\fIGID\fR
+.RS 4
+The numerical value of the group\*(Aqs ID\&. This value must be unique, unless the
+\fB\-o\fR
+option is used\&. The value must be non\-negative\&. The default is to use the smallest ID value greater than or equal to
+\fBGID_MIN\fR
+and greater than every other group\&.
+.sp
+See also the
+\fB\-r\fR
+option and the
+\fBGID_MAX\fR
+description\&.
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-K\fR, \fB\-\-key\fR\ \&\fIKEY\fR=\fIVALUE\fR
+.RS 4
+Overrides
+/etc/login\&.defs
+defaults (GID_MIN, GID_MAX and others)\&. Multiple
+\fB\-K\fR
+options can be specified\&.
+.sp
+Example:
+\fB\-K\fR\ \&\fIGID_MIN\fR=\fI100\fR\ \&
+\fB\-K\fR\ \&\fIGID_MAX\fR=\fI499\fR
+.sp
+Note:
+\fB\-K\fR\ \&\fIGID_MIN\fR=\fI10\fR,\fIGID_MAX\fR=\fI499\fR
+doesn\*(Aqt work yet\&.
+.RE
+.PP
+\fB\-o\fR, \fB\-\-non\-unique\fR
+.RS 4
+此选项允许添加一个使用非唯一 GID 的组。
+.RE
+.PP
+\fB\-p\fR, \fB\-\-password\fR\ \&\fIPASSWORD\fR
+.RS 4
+The encrypted password, as returned by
+\fBcrypt\fR(3)\&. The default is to disable the password\&.
+.sp
+\fBNote:\fR
+This option is not recommended because the password (or encrypted password) will be visible by users listing the processes\&.
+.sp
+您应该确保密码符合系统的密码政策。
+.RE
+.PP
+\fB\-r\fR, \fB\-\-system\fR
+.RS 4
+创建一个系统组。
+.sp
+The numeric identifiers of new system groups are chosen in the
+\fBSYS_GID_MIN\fR\-\fBSYS_GID_MAX\fR
+range, defined in
+login\&.defs, instead of
+\fBGID_MIN\fR\-\fBGID_MAX\fR\&.
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-P\fR, \fB\-\-prefix\fR\ \&\fIPREFIX_DIR\fR
+.RS 4
+Apply changes in the
+\fIPREFIX_DIR\fR
+directory and use the configuration files from the
+\fIPREFIX_DIR\fR
+directory\&. This option does not chroot and is intended for preparing a cross\-compilation target\&. Some limitations: NIS and LDAP users/groups are not verified\&. PAM authentication is using the host files\&. No SELINUX support\&.
+.RE
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBGID_MAX\fR (number), \fBGID_MIN\fR (number)
+.RS 4
+Range of group IDs used for the creation of regular groups by
+\fBuseradd\fR,
+\fBgroupadd\fR, or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBGID_MIN\fR
+(resp\&.
+\fBGID_MAX\fR) is 1000 (resp\&. 60000)\&.
+.RE
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.PP
+\fBSYS_GID_MAX\fR (number), \fBSYS_GID_MIN\fR (number)
+.RS 4
+Range of group IDs used for the creation of system groups by
+\fBuseradd\fR,
+\fBgroupadd\fR, or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBSYS_GID_MIN\fR
+(resp\&.
+\fBSYS_GID_MAX\fR) is 101 (resp\&.
+\fBGID_MIN\fR\-1)\&.
+.RE
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.SH "CAVEATS"
+.PP
+组名必须以小写字母或者下划线开头，跟随小写字母、下划线或短横线。可以由美元符号结束。用正则表达式就是：[a\-z_][a\-z0\-9_\-]*[$]?
+.PP
+Groupnames may only be up to 16 characters long\&.
+.PP
+You may not add a NIS or LDAP group\&. This must be performed on the corresponding server\&.
+.PP
+If the groupname already exists in an external group database such as NIS or LDAP,
+\fBgroupadd\fR
+will deny the group creation request\&.
+.SH "退出值"
+.PP
+The
+\fBgroupadd\fR
+command exits with the following values:
+.PP
+\fI0\fR
+.RS 4
+success
+.RE
+.PP
+\fI2\fR
+.RS 4
+invalid command syntax
+.RE
+.PP
+\fI3\fR
+.RS 4
+invalid argument to option
+.RE
+.PP
+\fI4\fR
+.RS 4
+GID not unique (when
+\fB\-o\fR
+not used)
+.RE
+.PP
+\fI9\fR
+.RS 4
+group name not unique
+.RE
+.PP
+\fI10\fR
+.RS 4
+can\*(Aqt update group file
+.RE
+.SH "参见"
+.PP
+\fBchfn\fR(1),
+\fBchsh\fR(1),
+\fBpasswd\fR(1),
+\fBgpasswd\fR(8),
+\fBgroupdel\fR(8),
+\fBgroupmod\fR(8),
+\fBlogin.defs\fR(5),
+\fBuseradd\fR(8),
+\fBuserdel\fR(8),
+\fBusermod\fR(8)\&.
diff --git a/man/zh_CN/man8/groupdel.8 b/man/zh_CN/man8/groupdel.8
new file mode 100644
index 0000000..dd5804d
--- /dev/null
+++ b/man/zh_CN/man8/groupdel.8
@@ -0,0 +1,145 @@
+'\" t
+.\"     Title: groupdel
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "GROUPDEL" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+groupdel \- 删除一个组
+.SH "大纲"
+.HP \w'\fBgroupdel\fR\ 'u
+\fBgroupdel\fR [\fI选项\fR] \fIGROUP\fR
+.SH "描述"
+.PP
+The
+\fBgroupdel\fR
+command modifies the system account files, deleting all entries that refer to
+\fIGROUP\fR\&. The named group must exist\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBgroupdel\fR
+command are:
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-P\fR, \fB\-\-prefix\fR\ \&\fIPREFIX_DIR\fR
+.RS 4
+Apply changes in the
+\fIPREFIX_DIR\fR
+directory and use the configuration files from the
+\fIPREFIX_DIR\fR
+directory\&. This option does not chroot and is intended for preparing a cross\-compilation target\&. Some limitations: NIS and LDAP users/groups are not verified\&. PAM authentication is using the host files\&. No SELINUX support\&.
+.RE
+.SH "CAVEATS"
+.PP
+您不能移除现有用户的主组。在移除此组之前，必须先移除此用户。
+.PP
+您需要手动检查所有文件系统，以确保没有遗留的属于此组的文件。
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.SH "退出值"
+.PP
+The
+\fBgroupdel\fR
+command exits with the following values:
+.PP
+\fI0\fR
+.RS 4
+success
+.RE
+.PP
+\fI2\fR
+.RS 4
+invalid command syntax
+.RE
+.PP
+\fI6\fR
+.RS 4
+specified group doesn\*(Aqt exist
+.RE
+.PP
+\fI8\fR
+.RS 4
+can\*(Aqt remove user\*(Aqs primary group
+.RE
+.PP
+\fI10\fR
+.RS 4
+can\*(Aqt update group file
+.RE
+.SH "参见"
+.PP
+\fBchfn\fR(1),
+\fBchsh\fR(1),
+\fBpasswd\fR(1),
+\fBgpasswd\fR(8),
+\fBgroupadd\fR(8),
+\fBgroupmod\fR(8),
+\fBuseradd\fR(8),
+\fBuserdel\fR(8),
+\fBusermod\fR(8)\&.
diff --git a/man/zh_CN/man8/groupmems.8 b/man/zh_CN/man8/groupmems.8
new file mode 100644
index 0000000..fdfe2c3
--- /dev/null
+++ b/man/zh_CN/man8/groupmems.8
@@ -0,0 +1,180 @@
+'\" t
+.\"     Title: groupmems
+.\"    Author: George Kraft, IV
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "GROUPMEMS" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+groupmems \- 用户主组的管理员成员
+.SH "大纲"
+.HP \w'\fBgroupmems\fR\ 'u
+\fBgroupmems\fR \-a\ \fIuser_name\fR | \-d\ \fIuser_name\fR | [\-g\ \fIgroup_name\fR] | \-l | \-p 
+.SH "描述"
+.PP
+The
+\fBgroupmems\fR
+command allows a user to administer their own group membership list without the requirement of superuser privileges\&. The
+\fBgroupmems\fR
+utility is for systems that configure its users to be in their own name sake primary group (i\&.e\&., guest / guest)\&.
+.PP
+Only the superuser, as administrator, can use
+\fBgroupmems\fR
+to alter the memberships of other groups\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBgroupmems\fR
+command are:
+.PP
+\fB\-a\fR, \fB\-\-add\fR\ \&\fIuser_name\fR
+.RS 4
+Add a user to the group membership list\&.
+.sp
+If the
+/etc/gshadow
+file exist, and the group has no entry in the
+/etc/gshadow
+file, a new entry will be created\&.
+.RE
+.PP
+\fB\-d\fR, \fB\-\-delete\fR\ \&\fIuser_name\fR
+.RS 4
+从组成员列表中删除用户。
+.sp
+If the
+/etc/gshadow
+file exist, the user will be removed from the list of members and administrators of the group\&.
+.sp
+If the
+/etc/gshadow
+file exist, and the group has no entry in the
+/etc/gshadow
+file, a new entry will be created\&.
+.RE
+.PP
+\fB\-g\fR, \fB\-\-group\fR\ \&\fIgroup_name\fR
+.RS 4
+超级用户可以指定修改哪个组的组成员列表。
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-l\fR, \fB\-\-list\fR
+.RS 4
+列出组成员。
+.RE
+.PP
+\fB\-p\fR, \fB\-\-purge\fR
+.RS 4
+从组成员列表中删除所有用户。
+.sp
+If the
+/etc/gshadow
+file exist, and the group has no entry in the
+/etc/gshadow
+file, a new entry will be created\&.
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.SH "SETUP"
+.PP
+The
+\fBgroupmems\fR
+executable should be in mode
+2710
+as user
+\fIroot\fR
+and in group
+\fIgroups\fR\&. The system administrator can add users to group
+\fIgroups\fR
+to allow or disallow them using the
+\fBgroupmems\fR
+utility to manage their own group membership list\&.
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+	$ groupadd \-r groups
+	$ chmod 2710 groupmems
+	$ chown root\&.groups groupmems
+	$ groupmems \-g groups \-a gk4
+    
+.fi
+.if n \{\
+.RE
+.\}
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息
+.RE
+.SH "参见"
+.PP
+\fBchfn\fR(1),
+\fBchsh\fR(1),
+\fBpasswd\fR(1),
+\fBgroupadd\fR(8),
+\fBgroupdel\fR(8),
+\fBuseradd\fR(8),
+\fBuserdel\fR(8),
+\fBusermod\fR(8)\&.
diff --git a/man/zh_CN/man8/groupmod.8 b/man/zh_CN/man8/groupmod.8
new file mode 100644
index 0000000..9701a5e
--- /dev/null
+++ b/man/zh_CN/man8/groupmod.8
@@ -0,0 +1,233 @@
+'\" t
+.\"     Title: groupmod
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "GROUPMOD" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+groupmod \- modify a group definition on the system
+.SH "大纲"
+.HP \w'\fBgroupmod\fR\ 'u
+\fBgroupmod\fR [\fI选项\fR] \fIGROUP\fR
+.SH "描述"
+.PP
+The
+\fBgroupmod\fR
+command modifies the definition of the specified
+\fIGROUP\fR
+by modifying the appropriate entry in the group database\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBgroupmod\fR
+command are:
+.PP
+\fB\-g\fR, \fB\-\-gid\fR\ \&\fIGID\fR
+.RS 4
+The group ID of the given
+\fIGROUP\fR
+will be changed to
+\fIGID\fR\&.
+.sp
+The value of
+\fIGID\fR
+must be a non\-negative decimal integer\&. This value must be unique, unless the
+\fB\-o\fR
+option is used\&.
+.sp
+Users who use the group as primary group will be updated to keep the group as their primary group\&.
+.sp
+Any files that have the old group ID and must continue to belong to
+\fIGROUP\fR, must have their group ID changed manually\&.
+.sp
+No checks will be performed with regard to the
+\fBGID_MIN\fR,
+\fBGID_MAX\fR,
+\fBSYS_GID_MIN\fR, or
+\fBSYS_GID_MAX\fR
+from
+/etc/login\&.defs\&.
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-n\fR, \fB\-\-new\-name\fR\ \&\fINEW_GROUP\fR
+.RS 4
+The name of the group will be changed from
+\fIGROUP\fR
+to
+\fINEW_GROUP\fR
+name\&.
+.RE
+.PP
+\fB\-o\fR, \fB\-\-non\-unique\fR
+.RS 4
+When used with the
+\fB\-g\fR
+option, allow to change the group
+\fIGID\fR
+to a non\-unique value\&.
+.RE
+.PP
+\fB\-p\fR, \fB\-\-password\fR\ \&\fIPASSWORD\fR
+.RS 4
+The encrypted password, as returned by
+\fBcrypt\fR(3)\&.
+.sp
+\fBNote:\fR
+This option is not recommended because the password (or encrypted password) will be visible by users listing the processes\&.
+.sp
+您应该确保密码符合系统的密码政策。
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-P\fR, \fB\-\-prefix\fR\ \&\fIPREFIX_DIR\fR
+.RS 4
+Apply changes in the
+\fIPREFIX_DIR\fR
+directory and use the configuration files from the
+\fIPREFIX_DIR\fR
+directory\&. This option does not chroot and is intended for preparing a cross\-compilation target\&. Some limitations: NIS and LDAP users/groups are not verified\&. PAM authentication is using the host files\&. No SELINUX support\&.
+.RE
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.SH "退出值"
+.PP
+The
+\fBgroupmod\fR
+command exits with the following values:
+.PP
+\fI0\fR
+.RS 4
+E_SUCCESS: success
+.RE
+.PP
+\fI2\fR
+.RS 4
+E_USAGE: invalid command syntax
+.RE
+.PP
+\fI3\fR
+.RS 4
+E_BAD_ARG: invalid argument to option
+.RE
+.PP
+\fI4\fR
+.RS 4
+E_GID_IN_USE: specified group doesn\*(Aqt exist
+.RE
+.PP
+\fI6\fR
+.RS 4
+E_NOTFOUND: specified group doesn\*(Aqt exist
+.RE
+.PP
+\fI9\fR
+.RS 4
+E_NAME_IN_USE: group name already in use
+.RE
+.PP
+\fI10\fR
+.RS 4
+E_GRP_UPDATE: can\*(Aqt update group file
+.RE
+.PP
+\fI11\fR
+.RS 4
+E_CLEANUP_SERVICE: can\*(Aqt setup cleanup service
+.RE
+.PP
+\fI12\fR
+.RS 4
+E_PAM_USERNAME: can\*(Aqt determine your username for use with pam
+.RE
+.PP
+\fI13\fR
+.RS 4
+E_PAM_ERROR: pam returned an error, see syslog facility id groupmod for the PAM error message
+.RE
+.SH "参见"
+.PP
+\fBchfn\fR(1),
+\fBchsh\fR(1),
+\fBpasswd\fR(1),
+\fBgpasswd\fR(8),
+\fBgroupadd\fR(8),
+\fBgroupdel\fR(8),
+\fBlogin.defs\fR(5),
+\fBuseradd\fR(8),
+\fBuserdel\fR(8),
+\fBusermod\fR(8)\&.
diff --git a/man/zh_CN/man8/grpck.8 b/man/zh_CN/man8/grpck.8
new file mode 100644
index 0000000..eb8f146
--- /dev/null
+++ b/man/zh_CN/man8/grpck.8
@@ -0,0 +1,247 @@
+'\" t
+.\"     Title: grpck
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "GRPCK" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+grpck \- 检查组文件的完整性
+.SH "大纲"
+.HP \w'\fBgrpck\fR\ 'u
+\fBgrpck\fR [选项] [\fIgroup\fR\ [\ \fIshadow\fR\ ]]
+.SH "描述"
+.PP
+The
+\fBgrpck\fR
+command verifies the integrity of the groups information\&. It checks that all entries in
+/etc/group
+and /etc/gshadow
+have the proper format and contain valid data\&. The user is prompted to delete entries that are improperly formatted or which have other uncorrectable errors\&.
+.PP
+检查的项目有：
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+正确的字段数
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+一个唯一且有效的组名
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+a valid group identifier
+(/etc/group only)
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+a valid list of members
+and administrators
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+a corresponding entry in the
+/etc/gshadow
+file (respectively
+/etc/group
+for the
+gshadow
+checks)
+.RE
+.PP
+The checks for correct number of fields and unique group name are fatal\&. If an entry has the wrong number of fields, the user will be prompted to delete the entire line\&. If the user does not answer affirmatively, all further checks are bypassed\&. An entry with a duplicated group name is prompted for deletion, but the remaining checks will still be made\&. All other errors are warnings and the user is encouraged to run the
+\fBgroupmod\fR
+command to correct the error\&.
+.PP
+The commands which operate on the
+/etc/group
+and /etc/gshadow files
+are not able to alter corrupted or duplicated entries\&.
+\fBgrpck\fR
+should be used in those circumstances to remove the offending entries\&.
+.SH "选项"
+.PP
+The
+\fB\-r\fR
+and
+\fB\-s\fR
+options cannot be combined\&.
+.PP
+The options which apply to the
+\fBgrpck\fR
+command are:
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-r\fR, \fB\-\-read\-only\fR
+.RS 4
+Execute the
+\fBgrpck\fR
+command in read\-only mode\&. This causes all questions regarding changes to be answered
+\fIno\fR
+without user intervention\&.
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-s\fR, \fB\-\-sort\fR
+.RS 4
+Sort entries in
+/etc/group
+and /etc/gshadow
+by GID\&.
+.RE
+.PP
+By default,
+\fBgrpck\fR
+operates on
+/etc/group
+and /etc/gshadow\&. The user may select alternate files with the
+\fIgroup\fR
+and \fIshadow\fR parameters\&.
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.SH "退出值"
+.PP
+The
+\fBgrpck\fR
+command exits with the following values:
+.PP
+\fI0\fR
+.RS 4
+success
+.RE
+.PP
+\fI1\fR
+.RS 4
+invalid command syntax
+.RE
+.PP
+\fI2\fR
+.RS 4
+one or more bad group entries
+.RE
+.PP
+\fI3\fR
+.RS 4
+can\*(Aqt open group files
+.RE
+.PP
+\fI4\fR
+.RS 4
+can\*(Aqt lock group files
+.RE
+.PP
+\fI5\fR
+.RS 4
+can\*(Aqt update group files
+.RE
+.SH "参见"
+.PP
+\fBgroup\fR(5),
+\fBgroupmod\fR(8),
+\fBgshadow\fR(5),
+\fBpasswd\fR(5),
+\fBpwck\fR(8),
+\fBshadow\fR(5)\&.
diff --git a/man/zh_CN/man8/grpconv.8 b/man/zh_CN/man8/grpconv.8
new file mode 100644
index 0000000..6eed9e8
--- /dev/null
+++ b/man/zh_CN/man8/grpconv.8
@@ -0,0 +1 @@
+.so man8/pwconv.8
diff --git a/man/zh_CN/man8/grpunconv.8 b/man/zh_CN/man8/grpunconv.8
new file mode 100644
index 0000000..6eed9e8
--- /dev/null
+++ b/man/zh_CN/man8/grpunconv.8
@@ -0,0 +1 @@
+.so man8/pwconv.8
diff --git a/man/zh_CN/man8/lastlog.8 b/man/zh_CN/man8/lastlog.8
new file mode 100644
index 0000000..52dcc9c
--- /dev/null
+++ b/man/zh_CN/man8/lastlog.8
@@ -0,0 +1,137 @@
+'\" t
+.\"     Title: lastlog
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "LASTLOG" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+lastlog \- 报告所有用户的最近登录情况，或者指定用户的最近登录情况
+.SH "大纲"
+.HP \w'\fBlastlog\fR\ 'u
+\fBlastlog\fR [\fI选项\fR]
+.SH "描述"
+.PP
+\fBlastlog\fR
+formats and prints the contents of the last login log
+/var/log/lastlog
+file\&. The
+\fIlogin\-name\fR,
+\fIport\fR, and
+\fIlast login time\fR
+will be printed\&. The default (no flags) causes lastlog entries to be printed, sorted by their order in
+/etc/passwd\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBlastlog\fR
+command are:
+.PP
+\fB\-b\fR, \fB\-\-before\fR\ \&\fIDAYS\fR
+.RS 4
+Print only lastlog records older than
+\fIDAYS\fR\&.
+.RE
+.PP
+\fB\-C\fR, \fB\-\-clear\fR
+.RS 4
+Clear lastlog record of a user\&. This option can be used only together with
+\fB\-u\fR
+(\fB\-\-user\fR))\&.
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-S\fR, \fB\-\-set\fR
+.RS 4
+Set lastlog record of a user to the current time\&. This option can be used only together with
+\fB\-u\fR
+(\fB\-\-user\fR))\&.
+.RE
+.PP
+\fB\-t\fR, \fB\-\-time\fR\ \&\fIDAYS\fR
+.RS 4
+Print the lastlog records more recent than
+\fIDAYS\fR\&.
+.RE
+.PP
+\fB\-u\fR, \fB\-\-user\fR\ \&\fILOGIN\fR|\fIRANGE\fR
+.RS 4
+现实指定用户的最近登录记录。
+.sp
+The users can be specified by a login name, a numerical user ID, or a
+\fIRANGE\fR
+of users\&. This
+\fIRANGE\fR
+of users can be specified with a min and max values (\fIUID_MIN\-UID_MAX\fR), a max value (\fI\-UID_MAX\fR), or a min value (\fIUID_MIN\-\fR)\&.
+.RE
+.PP
+If the user has never logged in the message
+\fI** Never logged in**\fR
+will be displayed instead of the port and time\&.
+.PP
+Only the entries for the current users of the system will be displayed\&. Other entries may exist for users that were deleted previously\&.
+.SH "注意"
+.PP
+The
+lastlog
+file is a database which contains info on the last login of each user\&. You should not rotate it\&. It is a sparse file, so its size on the disk is usually much smaller than the one shown by "\fBls \-l\fR" (which can indicate a really big file if you have in
+passwd
+users with a high UID)\&. You can display its real size with "\fBls \-s\fR"\&.
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBLASTLOG_UID_MAX\fR (number)
+.RS 4
+Highest user ID number for which the lastlog entries should be updated\&. As higher user IDs are usually tracked by remote user identity and authentication services there is no need to create a huge sparse lastlog file for them\&.
+.sp
+No
+\fBLASTLOG_UID_MAX\fR
+option present in the configuration means that there is no user ID limit for writing lastlog entries\&.
+.RE
+.SH "文件"
+.PP
+/var/log/lastlog
+.RS 4
+Database times of previous user logins\&.
+.RE
+.SH "CAVEATS"
+.PP
+Large gaps in UID numbers will cause the lastlog program to run longer with no output to the screen (i\&.e\&. if in lastlog database there is no entries for users with UID between 170 and 800 lastlog will appear to hang as it processes entries with UIDs 171\-799)\&.
diff --git a/man/zh_CN/man8/logoutd.8 b/man/zh_CN/man8/logoutd.8
new file mode 100644
index 0000000..d9c36e7
--- /dev/null
+++ b/man/zh_CN/man8/logoutd.8
@@ -0,0 +1,57 @@
+'\" t
+.\"     Title: logoutd
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "LOGOUTD" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+logoutd \- 强制登录时间限制
+.SH "大纲"
+.HP \w'\fBlogoutd\fR\ 'u
+\fBlogoutd\fR
+.SH "描述"
+.PP
+\fBlogoutd\fR
+enforces the login time and port restrictions specified in
+/etc/porttime\&.
+\fBlogoutd\fR
+should be started from
+/etc/rc\&. The
+/var/run/utmp
+file is scanned periodically and each user name is checked to see if the named user is permitted on the named port at the current time\&. Any login session which is violating the restrictions in
+/etc/porttime
+is terminated\&.
+.SH "文件"
+.PP
+/etc/porttime
+.RS 4
+包含了端口访问信息的文件。
+.RE
+.PP
+/var/run/utmp
+.RS 4
+当前登录会话的列表。
+.RE
diff --git a/man/zh_CN/man8/newusers.8 b/man/zh_CN/man8/newusers.8
new file mode 100644
index 0000000..190defa
--- /dev/null
+++ b/man/zh_CN/man8/newusers.8
@@ -0,0 +1,449 @@
+'\" t
+.\"     Title: newusers
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "NEWUSERS" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+newusers \- 批量更新和创建新用户
+.SH "大纲"
+.HP \w'\fBnewusers\fR\ 'u
+\fBnewusers\fR [\fI选项\fR] [\fI文件\fR]
+.SH "描述"
+.PP
+The
+\fBnewusers\fR
+command reads a
+\fIfile\fR
+(or the standard input by default) and uses this information to update a set of existing users or to create new users\&. Each line is in the same format as the standard password file (see
+\fBpasswd\fR(5)) with the exceptions explained below:
+.PP
+pw_name:pw_passwd:pw_uid:pw_gid:pw_gecos:pw_dir:pw_shell
+.PP
+\fIpw_name\fR
+.RS 4
+这是用户的用户名。
+.sp
+It can be the name of a new user or the name of an existing user (or a user created before by
+\fBnewusers\fR)\&. In case of an existing user, the user\*(Aqs information will be changed, otherwise a new user will be created\&.
+.RE
+.PP
+\fIpw_passwd\fR
+.RS 4
+此字段将被加密然后用于加密后密码的新值。
+.RE
+.PP
+\fIpw_uid\fR
+.RS 4
+此字段用于定义用户的 UID。
+.sp
+If the field is empty, a new (unused) UID will be defined automatically by
+\fBnewusers\fR\&.
+.sp
+如果此字段包含一个数字，此数字会用于 UID。
+.sp
+If this field contains the name of an existing user (or the name of a user created before by
+\fBnewusers\fR), the UID of the specified user will be used\&.
+.sp
+如果一个现有用户更改了 UID，此用户的文件所有权需要手动修复。
+.RE
+.PP
+\fIpw_gid\fR
+.RS 4
+此字段用于定义用户的主组 ID。
+.sp
+If this field contains the name of an existing group (or a group created before by
+\fBnewusers\fR), the GID of this group will be used as the primary group ID for the user\&.
+.sp
+如果此字段是一个数字，此数字会被用作此用户的主组 ID。如果没有对应此 GID 的现有组，将会使用此 GID 创建一个新组，名称和用户名相同。
+.sp
+If this field is empty, a new group will be created with the name of the user and a GID will be automatically defined by
+\fBnewusers\fR
+to be used as the primary group ID for the user and as the GID for the new group\&.
+.sp
+If this field contains the name of a group which does not exist (and was not created before by
+\fBnewusers\fR), a new group will be created with the specified name and a GID will be automatically defined by
+\fBnewusers\fR
+to be used as the primary group ID for the user and GID for the new group\&.
+.RE
+.PP
+\fIpw_gecos\fR
+.RS 4
+此字段复制到用户的 GECOS 字段。
+.RE
+.PP
+\fIpw_dir\fR
+.RS 4
+此字段用于定义用户的主目录。
+.sp
+如果此字段指定的不是现有的目录，将会创建指定的目录，所有权设置为创建或更新的用户及其主组。
+.sp
+If the home directory of an existing user is changed,
+\fBnewusers\fR
+does not move or copy the content of the old directory to the new location\&. This should be done manually\&.
+.RE
+.PP
+\fIpw_shell\fR
+.RS 4
+此字段定义了用户的 shell。对此字段不进行任何检查。
+.RE
+.PP
+\fBnewusers\fR
+first tries to create or change all the specified users, and then write these changes to the user or group databases\&. If an error occurs (except in the final writes to the databases), no changes are committed to the databases\&.
+.PP
+此命令一般用于在大型的应用环境中，对大量账户进行一次性更新。
+.SH "选项"
+.PP
+The options which apply to the
+\fBnewusers\fR
+command are:
+.PP
+\fB\-\-badname\fR\ \&
+.RS 4
+Allow names that do not conform to standards\&.
+.RE
+.PP
+\fB\-c\fR, \fB\-\-crypt\-method\fR
+.RS 4
+使用指定的方法加密密码。
+.sp
+可用的方法有 DES, MD5, NONE, and SHA256 或 SHA512，前提是您的 libc 支持这写方法。
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-r\fR, \fB\-\-system\fR
+.RS 4
+创建一个系统账户。
+.sp
+System users will be created with no aging information in
+/etc/shadow, and their numeric identifiers are chosen in the
+\fBSYS_UID_MIN\fR\-\fBSYS_UID_MAX\fR
+range, defined in
+login\&.defs, instead of
+\fBUID_MIN\fR\-\fBUID_MAX\fR
+(and their
+\fBGID\fR
+counterparts for the creation of groups)\&.
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-s\fR, \fB\-\-sha\-rounds\fR
+.RS 4
+使用指定次数的轮转来加密密码。
+.sp
+值 0 表示让系统为加密方法选择默认的轮转次数 (5000)。
+.sp
+会强制最小 1,000，最大 9,9999,9999
+.sp
+您只可以对 SHA256 或 SHA512 使用此选项。
+.sp
+By default, the number of rounds is defined by the SHA_CRYPT_MIN_ROUNDS and SHA_CRYPT_MAX_ROUNDS variables in
+/etc/login\&.defs\&.
+.RE
+.SH "CAVEATS"
+.PP
+输入文件必须受到保护，因为它包含未加密的密码。
+.PP
+您需要确保你吗和加密方法符合系统的密码策略。
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBENCRYPT_METHOD\fR (string)
+.RS 4
+这定义了系统加密密码的默认算法(如果没有在命令行上指定算法)。
+.sp
+It can take one of these values:
+\fIDES\fR
+(default),
+\fIMD5\fR, \fISHA256\fR, \fISHA512\fR\&.
+.sp
+Note: this parameter overrides the
+\fBMD5_CRYPT_ENAB\fR
+variable\&.
+.RE
+.PP
+\fBGID_MAX\fR (number), \fBGID_MIN\fR (number)
+.RS 4
+Range of group IDs used for the creation of regular groups by
+\fBuseradd\fR,
+\fBgroupadd\fR, or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBGID_MIN\fR
+(resp\&.
+\fBGID_MAX\fR) is 1000 (resp\&. 60000)\&.
+.RE
+.PP
+\fBHOME_MODE\fR (number)
+.RS 4
+The mode for new home directories\&. If not specified, the
+\fBUMASK\fR
+is used to create the mode\&.
+.sp
+\fBuseradd\fR
+and
+\fBnewusers\fR
+use this to set the mode of the home directory they create\&.
+.RE
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.PP
+\fBMD5_CRYPT_ENAB\fR (boolean)
+.RS 4
+Indicate if passwords must be encrypted using the MD5\-based algorithm\&. If set to
+\fIyes\fR, new passwords will be encrypted using the MD5\-based algorithm compatible with the one used by recent releases of FreeBSD\&. It supports passwords of unlimited length and longer salt strings\&. Set to
+\fIno\fR
+if you need to copy encrypted passwords to other systems which don\*(Aqt understand the new algorithm\&. Default is
+\fIno\fR\&.
+.sp
+This variable is superseded by the
+\fBENCRYPT_METHOD\fR
+variable or by any command line option used to configure the encryption algorithm\&.
+.sp
+This variable is deprecated\&. You should use
+\fBENCRYPT_METHOD\fR\&.
+.RE
+.PP
+\fBPASS_MAX_DAYS\fR (number)
+.RS 4
+一个密码可以使用的最大天数。如果密码比这旧，将会强迫更改密码。如果不指定，就假定为 \-1，这会禁用这个限制。
+.RE
+.PP
+\fBPASS_MIN_DAYS\fR (number)
+.RS 4
+两次更改密码时间的最小间隔。将会拒绝任何早于此的更改密码的尝试。如果不指定，假定为 \-1，将会禁用这个限制。
+.RE
+.PP
+\fBPASS_WARN_AGE\fR (number)
+.RS 4
+密码过期之前给出警告的天数。0 表示只有只在过期的当天警告，负值表示不警告。如果没有指定，不会给警告。
+.RE
+.PP
+\fBSHA_CRYPT_MIN_ROUNDS\fR (number), \fBSHA_CRYPT_MAX_ROUNDS\fR (number)
+.RS 4
+When
+\fBENCRYPT_METHOD\fR
+is set to
+\fISHA256\fR
+or
+\fISHA512\fR, this defines the number of SHA rounds used by the encryption algorithm by default (when the number of rounds is not specified on the command line)\&.
+.sp
+使用很多轮转，会让暴力破解更加困难。但是需要注意，认证用户时也会需要更多的 CPU 资源。
+.sp
+如果没有指定，libc 会选择默认的轮转数(5000)。
+.sp
+值必须在 1000 \- 999,999,999 之间。
+.sp
+If only one of the
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+or
+\fBSHA_CRYPT_MAX_ROUNDS\fR
+values is set, then this value will be used\&.
+.sp
+If
+\fBSHA_CRYPT_MIN_ROUNDS\fR
+>
+\fBSHA_CRYPT_MAX_ROUNDS\fR, the highest value will be used\&.
+.RE
+.PP
+\fBSUB_GID_MIN\fR (number), \fBSUB_GID_MAX\fR (number), \fBSUB_GID_COUNT\fR (number)
+.RS 4
+If
+/etc/subuid
+exists, the commands
+\fBuseradd\fR
+and
+\fBnewusers\fR
+(unless the user already have subordinate group IDs) allocate
+\fBSUB_GID_COUNT\fR
+unused group IDs from the range
+\fBSUB_GID_MIN\fR
+to
+\fBSUB_GID_MAX\fR
+for each new user\&.
+.sp
+The default values for
+\fBSUB_GID_MIN\fR,
+\fBSUB_GID_MAX\fR,
+\fBSUB_GID_COUNT\fR
+are respectively 100000, 600100000 and 65536\&.
+.RE
+.PP
+\fBSUB_UID_MIN\fR (number), \fBSUB_UID_MAX\fR (number), \fBSUB_UID_COUNT\fR (number)
+.RS 4
+If
+/etc/subuid
+exists, the commands
+\fBuseradd\fR
+and
+\fBnewusers\fR
+(unless the user already have subordinate user IDs) allocate
+\fBSUB_UID_COUNT\fR
+unused user IDs from the range
+\fBSUB_UID_MIN\fR
+to
+\fBSUB_UID_MAX\fR
+for each new user\&.
+.sp
+The default values for
+\fBSUB_UID_MIN\fR,
+\fBSUB_UID_MAX\fR,
+\fBSUB_UID_COUNT\fR
+are respectively 100000, 600100000 and 65536\&.
+.RE
+.PP
+\fBSYS_GID_MAX\fR (number), \fBSYS_GID_MIN\fR (number)
+.RS 4
+Range of group IDs used for the creation of system groups by
+\fBuseradd\fR,
+\fBgroupadd\fR, or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBSYS_GID_MIN\fR
+(resp\&.
+\fBSYS_GID_MAX\fR) is 101 (resp\&.
+\fBGID_MIN\fR\-1)\&.
+.RE
+.PP
+\fBSYS_UID_MAX\fR (number), \fBSYS_UID_MIN\fR (number)
+.RS 4
+Range of user IDs used for the creation of system users by
+\fBuseradd\fR
+or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBSYS_UID_MIN\fR
+(resp\&.
+\fBSYS_UID_MAX\fR) is 101 (resp\&.
+\fBUID_MIN\fR\-1)\&.
+.RE
+.PP
+\fBUID_MAX\fR (number), \fBUID_MIN\fR (number)
+.RS 4
+Range of user IDs used for the creation of regular users by
+\fBuseradd\fR
+or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBUID_MIN\fR
+(resp\&.
+\fBUID_MAX\fR) is 1000 (resp\&. 60000)\&.
+.RE
+.PP
+\fBUMASK\fR (number)
+.RS 4
+文件模式创建掩码初始化为此值。如果没有指定，掩码初始化为 022。
+.sp
+\fBuseradd\fR
+and
+\fBnewusers\fR
+use this mask to set the mode of the home directory they create if
+\fBHOME_MODE\fR
+is not set\&.
+.sp
+It is also used by
+\fBlogin\fR
+to define users\*(Aq initial umask\&. Note that this mask can be overridden by the user\*(Aqs GECOS line (if
+\fBQUOTAS_ENAB\fR
+is set) or by the specification of a limit with the
+\fIK\fR
+identifier in
+\fBlimits\fR(5)\&.
+.RE
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.PP
+/etc/subgid
+.RS 4
+Per user subordinate group IDs\&.
+.RE
+.PP
+/etc/subuid
+.RS 4
+Per user subordinate user IDs\&.
+.RE
+.SH "参见"
+.PP
+\fBlogin.defs\fR(5),
+\fBpasswd\fR(1),
+\fBsubgid\fR(5), \fBsubuid\fR(5),
+\fBuseradd\fR(8)\&.
diff --git a/man/zh_CN/man8/nologin.8 b/man/zh_CN/man8/nologin.8
new file mode 100644
index 0000000..d07348f
--- /dev/null
+++ b/man/zh_CN/man8/nologin.8
@@ -0,0 +1,55 @@
+'\" t
+.\"     Title: nologin
+.\"    Author: Nicolas Fran\(,cois <nicolas.francois@centraliens.net>
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "NOLOGIN" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+nologin \- 礼貌地拒绝登录
+.SH "大纲"
+.HP \w'\fBnologin\fR\ 'u
+\fBnologin\fR
+.SH "描述"
+.PP
+The
+\fBnologin\fR
+command displays a message that an account is not available and exits non\-zero\&. It is intended as a replacement shell field for accounts that have been disabled\&.
+.PP
+To disable all logins, investigate
+\fBnologin\fR(5)\&.
+.PP
+If
+\fBSSH_ORIGINAL_COMMAND\fR
+is populated it will be logged\&.
+.SH "参见"
+.PP
+\fBlogin\fR(1),
+\fBnologin\fR(5)\&.
+.SH "历史"
+.PP
+The
+\fBnologin\fR
+command appeared in BSD 4\&.4\&.
diff --git a/man/zh_CN/man8/pwck.8 b/man/zh_CN/man8/pwck.8
new file mode 100644
index 0000000..8544184
--- /dev/null
+++ b/man/zh_CN/man8/pwck.8
@@ -0,0 +1,328 @@
+'\" t
+.\"     Title: pwck
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "PWCK" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+pwck \- 检查密码文件的完整性
+.SH "大纲"
+.HP \w'\fBpwck\fR\ 'u
+\fBpwck\fR [选项] [\fIpasswd\fR\ [\ \fIshadow\fR\ ]]
+.SH "描述"
+.PP
+The
+\fBpwck\fR
+command verifies the integrity of the users and authentication information\&. It checks that all entries in
+/etc/passwd
+and
+/etc/shadow
+have the proper format and contain valid data\&. The user is prompted to delete entries that are improperly formatted or which have other uncorrectable errors\&.
+.PP
+检查的项目有：
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+正确的字段数
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+一个唯一且有效的用户名
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+一个有效的用户和组标识符
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+有效的主组
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+有效的主目录
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+有效的登录 shell
+.RE
+.PP
+shadow
+checks are enabled when a second file parameter is specified or when
+/etc/shadow
+exists on the system\&.
+.PP
+这些检查是：
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+每个密码项都有对应的影子相，反之亦然。
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+密码在影子化了的文件中指定
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+影子项有正确的字段数。
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+影子项在影子文件中是唯一的
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+最后一次的密码更改时间不是被设成了一个将来的时间。
+.RE
+.PP
+The checks for correct number of fields and unique user name are fatal\&. If the entry has the wrong number of fields, the user will be prompted to delete the entire line\&. If the user does not answer affirmatively, all further checks are bypassed\&. An entry with a duplicated user name is prompted for deletion, but the remaining checks will still be made\&. All other errors are warning and the user is encouraged to run the
+\fBusermod\fR
+command to correct the error\&.
+.PP
+The commands which operate on the
+/etc/passwd
+file are not able to alter corrupted or duplicated entries\&.
+\fBpwck\fR
+should be used in those circumstances to remove the offending entry\&.
+.SH "选项"
+.PP
+The
+\fB\-r\fR
+and
+\fB\-s\fR
+options cannot be combined\&.
+.PP
+The options which apply to the
+\fBpwck\fR
+command are:
+.PP
+\fB\-\-badname\fR\ \&
+.RS 4
+Allow names that do not conform to standards\&.
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-q\fR, \fB\-\-quiet\fR
+.RS 4
+只报告错误。不显示那些不需要用户操作的警告。
+.RE
+.PP
+\fB\-r\fR, \fB\-\-read\-only\fR
+.RS 4
+Execute the
+\fBpwck\fR
+command in read\-only mode\&.
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-s\fR, \fB\-\-sort\fR
+.RS 4
+Sort entries in
+/etc/passwd
+and
+/etc/shadow
+by UID\&.
+.RE
+.PP
+By default,
+\fBpwck\fR
+operates on the files
+/etc/passwd
+and
+/etc/shadow\&. The user may select alternate files with the
+\fIpasswd\fR
+and
+\fIshadow\fR
+parameters\&.
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBPASS_MAX_DAYS\fR (number)
+.RS 4
+一个密码可以使用的最大天数。如果密码比这旧，将会强迫更改密码。如果不指定，就假定为 \-1，这会禁用这个限制。
+.RE
+.PP
+\fBPASS_MIN_DAYS\fR (number)
+.RS 4
+两次更改密码时间的最小间隔。将会拒绝任何早于此的更改密码的尝试。如果不指定，假定为 \-1，将会禁用这个限制。
+.RE
+.PP
+\fBPASS_WARN_AGE\fR (number)
+.RS 4
+密码过期之前给出警告的天数。0 表示只有只在过期的当天警告，负值表示不警告。如果没有指定，不会给警告。
+.RE
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.SH "退出值"
+.PP
+The
+\fBpwck\fR
+command exits with the following values:
+.PP
+\fI0\fR
+.RS 4
+success
+.RE
+.PP
+\fI1\fR
+.RS 4
+invalid command syntax
+.RE
+.PP
+\fI2\fR
+.RS 4
+one or more bad password entries
+.RE
+.PP
+\fI3\fR
+.RS 4
+can\*(Aqt open password files
+.RE
+.PP
+\fI4\fR
+.RS 4
+can\*(Aqt lock password files
+.RE
+.PP
+\fI5\fR
+.RS 4
+can\*(Aqt update password files
+.RE
+.PP
+\fI6\fR
+.RS 4
+can\*(Aqt sort password files
+.RE
+.SH "参见"
+.PP
+\fBgroup\fR(5),
+\fBgrpck\fR(8),
+\fBpasswd\fR(5),
+\fBshadow\fR(5),
+\fBusermod\fR(8)\&.
diff --git a/man/zh_CN/man8/pwconv.8 b/man/zh_CN/man8/pwconv.8
new file mode 100644
index 0000000..0b6f41e
--- /dev/null
+++ b/man/zh_CN/man8/pwconv.8
@@ -0,0 +1,193 @@
+'\" t
+.\"     Title: pwconv
+.\"    Author: Marek Micha\(/lkiewicz
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "PWCONV" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+pwconv, pwunconv, grpconv, grpunconv \- 在影子密码和组以及其它直接转换
+.SH "大纲"
+.HP \w'\fBpwconv\fR\ 'u
+\fBpwconv\fR [\fI选项\fR]
+.HP \w'\fBpwunconv\fR\ 'u
+\fBpwunconv\fR [\fI选项\fR]
+.HP \w'\fBgrpconv\fR\ 'u
+\fBgrpconv\fR [\fI选项\fR]
+.HP \w'\fBgrpunconv\fR\ 'u
+\fBgrpunconv\fR [\fI选项\fR]
+.SH "描述"
+.PP
+The
+\fBpwconv\fR
+command creates
+\fIshadow\fR
+from
+\fIpasswd\fR
+and an optionally existing
+\fIshadow\fR\&.
+.PP
+The
+\fBpwunconv\fR
+command creates
+\fIpasswd\fR
+from
+\fIpasswd\fR
+and
+\fIshadow\fR
+and then removes
+\fIshadow\fR\&.
+.PP
+The
+\fBgrpconv\fR
+command creates
+\fIgshadow\fR
+from
+\fIgroup\fR
+and an optionally existing
+\fIgshadow\fR\&.
+.PP
+The
+\fBgrpunconv\fR
+command creates
+\fIgroup\fR
+from
+\fIgroup\fR
+and
+\fIgshadow\fR
+and then removes
+\fIgshadow\fR\&.
+.PP
+These four programs all operate on the normal and shadow password and group files:
+/etc/passwd,
+/etc/group,
+/etc/shadow, and
+/etc/gshadow\&.
+.PP
+Each program acquires the necessary locks before conversion\&.
+\fBpwconv\fR
+and
+\fBgrpconv\fR
+are similar\&. First, entries in the shadowed file which don\*(Aqt exist in the main file are removed\&. Then, shadowed entries which don\*(Aqt have `x\*(Aq as the password in the main file are updated\&. Any missing shadowed entries are added\&. Finally, passwords in the main file are replaced with `x\*(Aq\&. These programs can be used for initial conversion as well to update the shadowed file if the main file is edited by hand\&.
+.PP
+\fBpwconv\fR
+will use the values of
+\fIPASS_MIN_DAYS\fR,
+\fIPASS_MAX_DAYS\fR, and
+\fIPASS_WARN_AGE\fR
+from
+/etc/login\&.defs
+when adding new entries to
+/etc/shadow\&.
+.PP
+Likewise
+\fBpwunconv\fR
+and
+\fBgrpunconv\fR
+are similar\&. Passwords in the main file are updated from the shadowed file\&. Entries which exist in the main file but not in the shadowed file are left alone\&. Finally, the shadowed file is removed\&. Some password aging information is lost by
+\fBpwunconv\fR\&. It will convert what it can\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBpwconv\fR,
+\fBpwunconv\fR,
+\fBgrpconv\fR, and
+\fBgrpunconv\fR
+commands are:
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.SH "缺陷"
+.PP
+Errors in the password or group files (such as invalid or duplicate entries) may cause these programs to loop forever or fail in other strange ways\&. Please run
+\fBpwck\fR
+and
+\fBgrpck\fR
+to correct any such errors before converting to or from shadow passwords or groups\&.
+.SH "配置文件"
+.PP
+The following configuration variable in
+/etc/login\&.defs
+changes the behavior of
+\fBgrpconv\fR
+and
+\fBgrpunconv\fR:
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of
+\fBpwconv\fR:
+.PP
+\fBPASS_MAX_DAYS\fR (number)
+.RS 4
+一个密码可以使用的最大天数。如果密码比这旧，将会强迫更改密码。如果不指定，就假定为 \-1，这会禁用这个限制。
+.RE
+.PP
+\fBPASS_MIN_DAYS\fR (number)
+.RS 4
+两次更改密码时间的最小间隔。将会拒绝任何早于此的更改密码的尝试。如果不指定，假定为 \-1，将会禁用这个限制。
+.RE
+.PP
+\fBPASS_WARN_AGE\fR (number)
+.RS 4
+密码过期之前给出警告的天数。0 表示只有只在过期的当天警告，负值表示不警告。如果没有指定，不会给警告。
+.RE
+.SH "文件"
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.SH "参见"
+.PP
+\fBgrpck\fR(8),
+\fBlogin.defs\fR(5),
+\fBpwck\fR(8)\&.
diff --git a/man/zh_CN/man8/pwunconv.8 b/man/zh_CN/man8/pwunconv.8
new file mode 100644
index 0000000..6eed9e8
--- /dev/null
+++ b/man/zh_CN/man8/pwunconv.8
@@ -0,0 +1 @@
+.so man8/pwconv.8
diff --git a/man/zh_CN/man8/sulogin.8 b/man/zh_CN/man8/sulogin.8
new file mode 100644
index 0000000..a8acbf7
--- /dev/null
+++ b/man/zh_CN/man8/sulogin.8
@@ -0,0 +1,116 @@
+'\" t
+.\"     Title: sulogin
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "SULOGIN" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+sulogin \- Single\-user login
+.SH "SYNTAX"
+.PP
+\fBsulogin\fR
+[\fItty\-device\fR]
+.SH "描述"
+.PP
+The
+\fBsulogin\fR
+command is invoked by
+\fBinit\fR
+prior to allowing the user access to the system when in single user mode\&. This feature may only be available on certain systems where
+\fBinit\fR
+has been modified accordingly, or where the
+/etc/inittab
+has an entry for a single user login\&.
+.PP
+The user is prompted
+.PP
+Type control\-d to proceed with normal startup,
+(or give root password for system maintenance):
+.PP
+Input and output will be performed with the standard file descriptors unless the optional device name argument is provided\&.
+.PP
+If the user enters the correct root password, a login session is initiated\&. When
+\fIEOF\fR
+is pressed instead, the system enters multi\-user mode\&.
+.PP
+After the user exits the single\-user shell, or presses
+\fIEOF\fR, the system begins the initialization process required to enter multi\-user mode\&.
+.SH "CAVEATS"
+.PP
+This command can only be used if
+\fBinit\fR
+has been modified to call
+\fBsulogin\fR
+instead of
+/bin/sh, or if the user has set the
+\fIinittab\fR
+to support a single user login\&. For example, the line:
+.PP
+co:s:respawn:/etc/sulogin /dev/console
+.PP
+should execute the sulogin command in single user mode\&.
+.PP
+As complete an environment as possible is created\&. However, various devices may be unmounted or uninitialized and many of the user commands may be unavailable or nonfunctional as a result\&.
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBENV_HZ\fR (string)
+.RS 4
+If set, it will be used to define the HZ environment variable when a user login\&. The value must be preceded by
+\fIHZ=\fR\&. A common value on Linux is
+\fIHZ=100\fR\&.
+.RE
+.PP
+\fBENV_TZ\fR (string)
+.RS 4
+If set, it will be used to define the TZ environment variable when a user login\&. The value can be the name of a timezone preceded by
+\fITZ=\fR
+(for example
+\fITZ=CST6CDT\fR), or the full path to the file containing the timezone specification (for example
+/etc/tzname)\&.
+.sp
+If a full path is specified but the file does not exist or cannot be read, the default is to use
+\fITZ=CST6CDT\fR\&.
+.RE
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.SH "参见"
+.PP
+\fBlogin\fR(1),
+\fBsh\fR(1),
+\fBinit\fR(8)\&.
diff --git a/man/zh_CN/man8/useradd.8 b/man/zh_CN/man8/useradd.8
new file mode 100644
index 0000000..ea0f7b1
--- /dev/null
+++ b/man/zh_CN/man8/useradd.8
@@ -0,0 +1,784 @@
+'\" t
+.\"     Title: useradd
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "USERADD" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+useradd \- 创建一个新用户或更新默认新用户信息
+.SH "大纲"
+.HP \w'\fBuseradd\fR\ 'u
+\fBuseradd\fR [\fI选项\fR] \fI登录\fR
+.HP \w'\fBuseradd\fR\ 'u
+\fBuseradd\fR \-D
+.HP \w'\fBuseradd\fR\ 'u
+\fBuseradd\fR \-D [\fI选项\fR]
+.SH "描述"
+.PP
+When invoked without the
+\fB\-D\fR
+option, the
+\fBuseradd\fR
+command creates a new user account using the values specified on the command line plus the default values from the system\&. Depending on command line options, the
+\fBuseradd\fR
+command will update system files and may also create the new user\*(Aqs home directory and copy initial files\&.
+.PP
+By default, a group will also be created for the new user (see
+\fB\-g\fR,
+\fB\-N\fR,
+\fB\-U\fR, and
+\fBUSERGROUPS_ENAB\fR)\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBuseradd\fR
+command are:
+.PP
+\fB\-\-badname\fR\ \&
+.RS 4
+Allow names that do not conform to standards\&.
+.RE
+.PP
+\fB\-b\fR, \fB\-\-base\-dir\fR\ \&\fIBASE_DIR\fR
+.RS 4
+The default base directory for the system if
+\fB\-d\fR\ \&\fIHOME_DIR\fR
+is not specified\&.
+\fIBASE_DIR\fR
+is concatenated with the account name to define the home directory\&. If the
+\fB\-m\fR
+option is not used,
+\fIBASE_DIR\fR
+must exist\&.
+.sp
+If this option is not specified,
+\fBuseradd\fR
+will use the base directory specified by the
+\fBHOME\fR
+variable in
+/etc/default/useradd, or
+/home
+by default\&.
+.RE
+.PP
+\fB\-c\fR, \fB\-\-comment\fR\ \&\fICOMMENT\fR
+.RS 4
+任何字符串。通常是关于登录的简短描述，当前用于用户全名。
+.RE
+.PP
+\fB\-d\fR, \fB\-\-home\-dir\fR\ \&\fIHOME_DIR\fR
+.RS 4
+The new user will be created using
+\fIHOME_DIR\fR
+as the value for the user\*(Aqs login directory\&. The default is to append the
+\fILOGIN\fR
+name to
+\fIBASE_DIR\fR
+and use that as the login directory name\&. The directory
+\fIHOME_DIR\fR
+does not have to exist but will not be created if it is missing\&.
+.RE
+.PP
+\fB\-D\fR, \fB\-\-defaults\fR
+.RS 4
+看下边，\(lq更改默认值\(rq子节。
+.RE
+.PP
+\fB\-e\fR, \fB\-\-expiredate\fR\ \&\fIEXPIRE_DATE\fR
+.RS 4
+The date on which the user account will be disabled\&. The date is specified in the format
+\fIYYYY\-MM\-DD\fR\&.
+.sp
+If not specified,
+\fBuseradd\fR
+will use the default expiry date specified by the
+\fBEXPIRE\fR
+variable in
+/etc/default/useradd, or an empty string (no expiry) by default\&.
+.RE
+.PP
+\fB\-f\fR, \fB\-\-inactive\fR\ \&\fIINACTIVE\fR
+.RS 4
+密码过期后，账户被彻底禁用之前的天数。0 表示立即禁用，\-1 表示禁用这个功能。
+.sp
+If not specified,
+\fBuseradd\fR
+will use the default inactivity period specified by the
+\fBINACTIVE\fR
+variable in
+/etc/default/useradd, or \-1 by default\&.
+.RE
+.PP
+\fB\-g\fR, \fB\-\-gid\fR\ \&\fIGROUP\fR
+.RS 4
+用户初始登陆组的组名或号码。组名必须已经存在。组号码必须指代已经存在的组。
+.sp
+If not specified, the behavior of
+\fBuseradd\fR
+will depend on the
+\fBUSERGROUPS_ENAB\fR
+variable in
+/etc/login\&.defs\&. If this variable is set to
+\fIyes\fR
+(or
+\fB\-U/\-\-user\-group\fR
+is specified on the command line), a group will be created for the user, with the same name as her loginname\&. If the variable is set to
+\fIno\fR
+(or
+\fB\-N/\-\-no\-user\-group\fR
+is specified on the command line), useradd will set the primary group of the new user to the value specified by the
+\fBGROUP\fR
+variable in
+/etc/default/useradd, or 100 by default\&.
+.RE
+.PP
+\fB\-G\fR, \fB\-\-groups\fR\ \&\fIGROUP1\fR[\fI,GROUP2,\&.\&.\&.\fR[\fI,GROUPN\fR]]]
+.RS 4
+A list of supplementary groups which the user is also a member of\&. Each group is separated from the next by a comma, with no intervening whitespace\&. The groups are subject to the same restrictions as the group given with the
+\fB\-g\fR
+option\&. The default is for the user to belong only to the initial group\&.
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-k\fR, \fB\-\-skel\fR\ \&\fISKEL_DIR\fR
+.RS 4
+The skeleton directory, which contains files and directories to be copied in the user\*(Aqs home directory, when the home directory is created by
+\fBuseradd\fR\&.
+.sp
+This option is only valid if the
+\fB\-m\fR
+(or
+\fB\-\-create\-home\fR) option is specified\&.
+.sp
+If this option is not set, the skeleton directory is defined by the
+\fBSKEL\fR
+variable in
+/etc/default/useradd
+or, by default,
+/etc/skel\&.
+.sp
+如果可以，也复制 ACL 和扩展属性。
+.RE
+.PP
+\fB\-K\fR, \fB\-\-key\fR\ \&\fIKEY\fR=\fIVALUE\fR
+.RS 4
+Overrides
+/etc/login\&.defs
+defaults (\fBUID_MIN\fR,
+\fBUID_MAX\fR,
+\fBUMASK\fR,
+\fBPASS_MAX_DAYS\fR
+and others)\&.
+
+Example:
+\fB\-K\fR\ \&\fIPASS_MAX_DAYS\fR=\fI\-1\fR
+can be used when creating system account to turn off password aging, even though system account has no password at all\&. Multiple
+\fB\-K\fR
+options can be specified, e\&.g\&.:
+\fB\-K\fR\ \&\fIUID_MIN\fR=\fI100\fR\ \&
+\fB\-K\fR\ \&\fIUID_MAX\fR=\fI499\fR
+.RE
+.PP
+\fB\-l\fR, \fB\-\-no\-log\-init\fR
+.RS 4
+不要将用户添加到最近登录和登录失败数据库。
+.sp
+By default, the user\*(Aqs entries in the lastlog and faillog databases are reset to avoid reusing the entry from a previously deleted user\&.
+.RE
+.PP
+\fB\-m\fR, \fB\-\-create\-home\fR
+.RS 4
+Create the user\*(Aqs home directory if it does not exist\&. The files and directories contained in the skeleton directory (which can be defined with the
+\fB\-k\fR
+option) will be copied to the home directory\&.
+.sp
+By default, if this option is not specified and
+\fBCREATE_HOME\fR
+is not enabled, no home directories are created\&.
+.RE
+.PP
+\fB\-M\fR, \fB\-\-no\-create\-home\fR
+.RS 4
+Do no create the user\*(Aqs home directory, even if the system wide setting from
+/etc/login\&.defs
+(\fBCREATE_HOME\fR) is set to
+\fIyes\fR\&.
+.RE
+.PP
+\fB\-N\fR, \fB\-\-no\-user\-group\fR
+.RS 4
+Do not create a group with the same name as the user, but add the user to the group specified by the
+\fB\-g\fR
+option or by the
+\fBGROUP\fR
+variable in
+/etc/default/useradd\&.
+.sp
+The default behavior (if the
+\fB\-g\fR,
+\fB\-N\fR, and
+\fB\-U\fR
+options are not specified) is defined by the
+\fBUSERGROUPS_ENAB\fR
+variable in
+/etc/login\&.defs\&.
+.RE
+.PP
+\fB\-o\fR, \fB\-\-non\-unique\fR
+.RS 4
+允许使用重复的 UID 创建用户账户。
+.sp
+This option is only valid in combination with the
+\fB\-u\fR
+option\&.
+.RE
+.PP
+\fB\-p\fR, \fB\-\-password\fR\ \&\fIPASSWORD\fR
+.RS 4
+The encrypted password, as returned by
+\fBcrypt\fR(3)\&. The default is to disable the password\&.
+.sp
+\fBNote:\fR
+This option is not recommended because the password (or encrypted password) will be visible by users listing the processes\&.
+.sp
+您应该确保密码符合系统的密码政策。
+.RE
+.PP
+\fB\-r\fR, \fB\-\-system\fR
+.RS 4
+创建一个系统账户。
+.sp
+System users will be created with no aging information in
+/etc/shadow, and their numeric identifiers are chosen in the
+\fBSYS_UID_MIN\fR\-\fBSYS_UID_MAX\fR
+range, defined in
+/etc/login\&.defs, instead of
+\fBUID_MIN\fR\-\fBUID_MAX\fR
+(and their
+\fBGID\fR
+counterparts for the creation of groups)\&.
+.sp
+Note that
+\fBuseradd\fR
+will not create a home directory for such a user, regardless of the default setting in
+/etc/login\&.defs
+(\fBCREATE_HOME\fR)\&. You have to specify the
+\fB\-m\fR
+options if you want a home directory for a system account to be created\&.
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-P\fR, \fB\-\-prefix\fR\ \&\fIPREFIX_DIR\fR
+.RS 4
+Apply changes in the
+\fIPREFIX_DIR\fR
+directory and use the configuration files from the
+\fIPREFIX_DIR\fR
+directory\&. This option does not chroot and is intended for preparing a cross\-compilation target\&. Some limitations: NIS and LDAP users/groups are not verified\&. PAM authentication is using the host files\&. No SELINUX support\&.
+.RE
+.PP
+\fB\-s\fR, \fB\-\-shell\fR\ \&\fISHELL\fR
+.RS 4
+The name of the user\*(Aqs login shell\&. The default is to leave this field blank, which causes the system to select the default login shell specified by the
+\fBSHELL\fR
+variable in
+/etc/default/useradd, or an empty string by default\&.
+.RE
+.PP
+\fB\-u\fR, \fB\-\-uid\fR\ \&\fIUID\fR
+.RS 4
+The numerical value of the user\*(Aqs ID\&. This value must be unique, unless the
+\fB\-o\fR
+option is used\&. The value must be non\-negative\&. The default is to use the smallest ID value greater than or equal to
+\fBUID_MIN\fR
+and greater than every other user\&.
+.sp
+See also the
+\fB\-r\fR
+option and the
+\fBUID_MAX\fR
+description\&.
+.RE
+.PP
+\fB\-U\fR, \fB\-\-user\-group\fR
+.RS 4
+创建一个和用户同名的组，并将用户添加到组中。
+.sp
+The default behavior (if the
+\fB\-g\fR,
+\fB\-N\fR, and
+\fB\-U\fR
+options are not specified) is defined by the
+\fBUSERGROUPS_ENAB\fR
+variable in
+/etc/login\&.defs\&.
+.RE
+.PP
+\fB\-Z\fR, \fB\-\-selinux\-user\fR\ \&\fISEUSER\fR
+.RS 4
+用户登陆的 SELinux 用户。默认为留空，这会造成系统选择默认的 SELinux 用户。
+.RE
+.SS "更改默认值"
+.PP
+When invoked with only the
+\fB\-D\fR
+option,
+\fBuseradd\fR
+will display the current default values\&. When invoked with
+\fB\-D\fR
+plus other options,
+\fBuseradd\fR
+will update the default values for the specified options\&. Valid default\-changing options are:
+.PP
+\fB\-b\fR, \fB\-\-base\-dir\fR\ \&\fIBASE_DIR\fR
+.RS 4
+The path prefix for a new user\*(Aqs home directory\&. The user\*(Aqs name will be affixed to the end of
+\fIBASE_DIR\fR
+to form the new user\*(Aqs home directory name, if the
+\fB\-d\fR
+option is not used when creating a new account\&.
+.sp
+This option sets the
+\fBHOME\fR
+variable in
+/etc/default/useradd\&.
+.RE
+.PP
+\fB\-e\fR, \fB\-\-expiredate\fR\ \&\fIEXPIRE_DATE\fR
+.RS 4
+禁用此用户账户的日期。
+.sp
+This option sets the
+\fBEXPIRE\fR
+variable in
+/etc/default/useradd\&.
+.RE
+.PP
+\fB\-f\fR, \fB\-\-inactive\fR\ \&\fIINACTIVE\fR
+.RS 4
+密码过期到账户被禁用之前的天数。
+.sp
+This option sets the
+\fBINACTIVE\fR
+variable in
+/etc/default/useradd\&.
+.RE
+.PP
+\fB\-g\fR, \fB\-\-gid\fR\ \&\fIGROUP\fR
+.RS 4
+The group name or ID for a new user\*(Aqs initial group (when the
+\fB\-N/\-\-no\-user\-group\fR
+is used or when the
+\fBUSERGROUPS_ENAB\fR
+variable is set to
+\fIno\fR
+in
+/etc/login\&.defs)\&. The named group must exist, and a numerical group ID must have an existing entry\&.
+.sp
+This option sets the
+\fBGROUP\fR
+variable in
+/etc/default/useradd\&.
+.RE
+.PP
+\fB\-s\fR, \fB\-\-shell\fR\ \&\fISHELL\fR
+.RS 4
+新用户的登录 shell 名。
+.sp
+This option sets the
+\fBSHELL\fR
+variable in
+/etc/default/useradd\&.
+.RE
+.SH "注意："
+.PP
+The system administrator is responsible for placing the default user files in the
+/etc/skel/
+directory (or any other skeleton directory specified in
+/etc/default/useradd
+or on the command line)\&.
+.SH "CAVEATS"
+.PP
+您可能不能想 NIS 组或 LDAP 组添加用户。这只能在相应服务器上进行。
+.PP
+Similarly, if the username already exists in an external user database such as NIS or LDAP,
+\fBuseradd\fR
+will deny the user account creation request\&.
+.PP
+用户名必须以一个小写字母或下划线开始，跟随小写字符、数字、下划线或连字符的组合。可以以美元符号结束。用正则表达式表示就是：[a\-z_][a\-z0\-9_\-]*[$]?
+.PP
+用户名不能超过 32 个字符长。
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBCREATE_HOME\fR (boolean)
+.RS 4
+指示是否应该为新用户默认创建主目录。
+.sp
+此设置并不应用到系统用户，并且可以使用命令行覆盖。
+.RE
+.PP
+\fBGID_MAX\fR (number), \fBGID_MIN\fR (number)
+.RS 4
+Range of group IDs used for the creation of regular groups by
+\fBuseradd\fR,
+\fBgroupadd\fR, or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBGID_MIN\fR
+(resp\&.
+\fBGID_MAX\fR) is 1000 (resp\&. 60000)\&.
+.RE
+.PP
+\fBHOME_MODE\fR (number)
+.RS 4
+The mode for new home directories\&. If not specified, the
+\fBUMASK\fR
+is used to create the mode\&.
+.sp
+\fBuseradd\fR
+and
+\fBnewusers\fR
+use this to set the mode of the home directory they create\&.
+.RE
+.PP
+\fBLASTLOG_UID_MAX\fR (number)
+.RS 4
+Highest user ID number for which the lastlog entries should be updated\&. As higher user IDs are usually tracked by remote user identity and authentication services there is no need to create a huge sparse lastlog file for them\&.
+.sp
+No
+\fBLASTLOG_UID_MAX\fR
+option present in the configuration means that there is no user ID limit for writing lastlog entries\&.
+.RE
+.PP
+\fBMAIL_DIR\fR (string)
+.RS 4
+邮箱目录。修改或删除用户账户时需要处理邮箱，如果没有指定，将使用编译时指定的默认值。
+.RE
+.PP
+\fBMAIL_FILE\fR (string)
+.RS 4
+定义用户邮箱文件的位置(相对于主目录)。
+.RE
+.PP
+The
+\fBMAIL_DIR\fR
+and
+\fBMAIL_FILE\fR
+variables are used by
+\fBuseradd\fR,
+\fBusermod\fR, and
+\fBuserdel\fR
+to create, move, or delete the user\*(Aqs mail spool\&.
+.PP
+If
+\fBMAIL_CHECK_ENAB\fR
+is set to
+\fIyes\fR, they are also used to define the
+\fBMAIL\fR
+environment variable\&.
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.PP
+\fBPASS_MAX_DAYS\fR (number)
+.RS 4
+一个密码可以使用的最大天数。如果密码比这旧，将会强迫更改密码。如果不指定，就假定为 \-1，这会禁用这个限制。
+.RE
+.PP
+\fBPASS_MIN_DAYS\fR (number)
+.RS 4
+两次更改密码时间的最小间隔。将会拒绝任何早于此的更改密码的尝试。如果不指定，假定为 \-1，将会禁用这个限制。
+.RE
+.PP
+\fBPASS_WARN_AGE\fR (number)
+.RS 4
+密码过期之前给出警告的天数。0 表示只有只在过期的当天警告，负值表示不警告。如果没有指定，不会给警告。
+.RE
+.PP
+\fBSUB_GID_MIN\fR (number), \fBSUB_GID_MAX\fR (number), \fBSUB_GID_COUNT\fR (number)
+.RS 4
+If
+/etc/subuid
+exists, the commands
+\fBuseradd\fR
+and
+\fBnewusers\fR
+(unless the user already have subordinate group IDs) allocate
+\fBSUB_GID_COUNT\fR
+unused group IDs from the range
+\fBSUB_GID_MIN\fR
+to
+\fBSUB_GID_MAX\fR
+for each new user\&.
+.sp
+The default values for
+\fBSUB_GID_MIN\fR,
+\fBSUB_GID_MAX\fR,
+\fBSUB_GID_COUNT\fR
+are respectively 100000, 600100000 and 65536\&.
+.RE
+.PP
+\fBSUB_UID_MIN\fR (number), \fBSUB_UID_MAX\fR (number), \fBSUB_UID_COUNT\fR (number)
+.RS 4
+If
+/etc/subuid
+exists, the commands
+\fBuseradd\fR
+and
+\fBnewusers\fR
+(unless the user already have subordinate user IDs) allocate
+\fBSUB_UID_COUNT\fR
+unused user IDs from the range
+\fBSUB_UID_MIN\fR
+to
+\fBSUB_UID_MAX\fR
+for each new user\&.
+.sp
+The default values for
+\fBSUB_UID_MIN\fR,
+\fBSUB_UID_MAX\fR,
+\fBSUB_UID_COUNT\fR
+are respectively 100000, 600100000 and 65536\&.
+.RE
+.PP
+\fBSYS_GID_MAX\fR (number), \fBSYS_GID_MIN\fR (number)
+.RS 4
+Range of group IDs used for the creation of system groups by
+\fBuseradd\fR,
+\fBgroupadd\fR, or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBSYS_GID_MIN\fR
+(resp\&.
+\fBSYS_GID_MAX\fR) is 101 (resp\&.
+\fBGID_MIN\fR\-1)\&.
+.RE
+.PP
+\fBSYS_UID_MAX\fR (number), \fBSYS_UID_MIN\fR (number)
+.RS 4
+Range of user IDs used for the creation of system users by
+\fBuseradd\fR
+or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBSYS_UID_MIN\fR
+(resp\&.
+\fBSYS_UID_MAX\fR) is 101 (resp\&.
+\fBUID_MIN\fR\-1)\&.
+.RE
+.PP
+\fBUID_MAX\fR (number), \fBUID_MIN\fR (number)
+.RS 4
+Range of user IDs used for the creation of regular users by
+\fBuseradd\fR
+or
+\fBnewusers\fR\&.
+.sp
+The default value for
+\fBUID_MIN\fR
+(resp\&.
+\fBUID_MAX\fR) is 1000 (resp\&. 60000)\&.
+.RE
+.PP
+\fBUMASK\fR (number)
+.RS 4
+文件模式创建掩码初始化为此值。如果没有指定，掩码初始化为 022。
+.sp
+\fBuseradd\fR
+and
+\fBnewusers\fR
+use this mask to set the mode of the home directory they create if
+\fBHOME_MODE\fR
+is not set\&.
+.sp
+It is also used by
+\fBlogin\fR
+to define users\*(Aq initial umask\&. Note that this mask can be overridden by the user\*(Aqs GECOS line (if
+\fBQUOTAS_ENAB\fR
+is set) or by the specification of a limit with the
+\fIK\fR
+identifier in
+\fBlimits\fR(5)\&.
+.RE
+.PP
+\fBUSERGROUPS_ENAB\fR (boolean)
+.RS 4
+如果 uid 和 gid 相同，用户名和主用户名也相同，使非 root 组的组掩码位和属主位相同 (如：022 \-> 002, 077 \-> 007)。
+.sp
+If set to
+\fIyes\fR,
+\fBuserdel\fR
+will remove the user\*(Aqs group if it contains no more members, and
+\fBuseradd\fR
+will create by default a group with the name of the user\&.
+.RE
+.SH "文件"
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.PP
+/etc/default/useradd
+.RS 4
+账户创建的默认值。
+.RE
+.PP
+/etc/skel/
+.RS 4
+包含默认文件的目录。
+.RE
+.PP
+/etc/subgid
+.RS 4
+Per user subordinate group IDs\&.
+.RE
+.PP
+/etc/subuid
+.RS 4
+Per user subordinate user IDs\&.
+.RE
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.SH "退出值"
+.PP
+The
+\fBuseradd\fR
+command exits with the following values:
+.PP
+\fI0\fR
+.RS 4
+success
+.RE
+.PP
+\fI1\fR
+.RS 4
+can\*(Aqt update password file
+.RE
+.PP
+\fI2\fR
+.RS 4
+invalid command syntax
+.RE
+.PP
+\fI3\fR
+.RS 4
+invalid argument to option
+.RE
+.PP
+\fI4\fR
+.RS 4
+UID already in use (and no
+\fB\-o\fR)
+.RE
+.PP
+\fI6\fR
+.RS 4
+specified group doesn\*(Aqt exist
+.RE
+.PP
+\fI9\fR
+.RS 4
+username already in use
+.RE
+.PP
+\fI10\fR
+.RS 4
+can\*(Aqt update group file
+.RE
+.PP
+\fI12\fR
+.RS 4
+can\*(Aqt create home directory
+.RE
+.PP
+\fI14\fR
+.RS 4
+can\*(Aqt update SELinux user mapping
+.RE
+.SH "参见"
+.PP
+\fBchfn\fR(1),
+\fBchsh\fR(1),
+\fBpasswd\fR(1),
+\fBcrypt\fR(3),
+\fBgroupadd\fR(8),
+\fBgroupdel\fR(8),
+\fBgroupmod\fR(8),
+\fBlogin.defs\fR(5),
+\fBnewusers\fR(8),
+\fBsubgid\fR(5), \fBsubuid\fR(5),
+\fBuserdel\fR(8),
+\fBusermod\fR(8)\&.
diff --git a/man/zh_CN/man8/userdel.8 b/man/zh_CN/man8/userdel.8
new file mode 100644
index 0000000..3c91432
--- /dev/null
+++ b/man/zh_CN/man8/userdel.8
@@ -0,0 +1,308 @@
+'\" t
+.\"     Title: userdel
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "USERDEL" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+userdel \- 删除用户账户和相关文件
+.SH "大纲"
+.HP \w'\fBuserdel\fR\ 'u
+\fBuserdel\fR [选项] \fI登录\fR
+.SH "描述"
+.PP
+The
+\fBuserdel\fR
+command modifies the system account files, deleting all entries that refer to the user name
+\fILOGIN\fR\&. The named user must exist\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBuserdel\fR
+command are:
+.PP
+\fB\-f\fR, \fB\-\-force\fR
+.RS 4
+This option forces the removal of the user account, even if the user is still logged in\&. It also forces
+\fBuserdel\fR
+to remove the user\*(Aqs home directory and mail spool, even if another user uses the same home directory or if the mail spool is not owned by the specified user\&. If
+\fBUSERGROUPS_ENAB\fR
+is defined to
+\fIyes\fR
+in
+/etc/login\&.defs
+and if a group exists with the same name as the deleted user, then this group will be removed, even if it is still the primary group of another user\&.
+.sp
+\fINote:\fR
+This option is dangerous and may leave your system in an inconsistent state\&.
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-r\fR, \fB\-\-remove\fR
+.RS 4
+用户主目录中的文件将随用户主目录和用户邮箱一起删除。在其它文件系统中的文件必须手动搜索并删除。
+.sp
+The mail spool is defined by the
+\fBMAIL_DIR\fR
+variable in the
+login\&.defs
+file\&.
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-P\fR, \fB\-\-prefix\fR\ \&\fIPREFIX_DIR\fR
+.RS 4
+Apply changes in the
+\fIPREFIX_DIR\fR
+directory and use the configuration files from the
+\fIPREFIX_DIR\fR
+directory\&. This option does not chroot and is intended for preparing a cross\-compilation target\&. Some limitations: NIS and LDAP users/groups are not verified\&. PAM authentication is using the host files\&. No SELINUX support\&.
+.RE
+.PP
+\fB\-Z\fR, \fB\-\-selinux\-user\fR
+.RS 4
+移除用户登录的所有 SELinux 用户映射。
+.RE
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBMAIL_DIR\fR (string)
+.RS 4
+邮箱目录。修改或删除用户账户时需要处理邮箱，如果没有指定，将使用编译时指定的默认值。
+.RE
+.PP
+\fBMAIL_FILE\fR (string)
+.RS 4
+定义用户邮箱文件的位置(相对于主目录)。
+.RE
+.PP
+The
+\fBMAIL_DIR\fR
+and
+\fBMAIL_FILE\fR
+variables are used by
+\fBuseradd\fR,
+\fBusermod\fR, and
+\fBuserdel\fR
+to create, move, or delete the user\*(Aqs mail spool\&.
+.PP
+If
+\fBMAIL_CHECK_ENAB\fR
+is set to
+\fIyes\fR, they are also used to define the
+\fBMAIL\fR
+environment variable\&.
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.PP
+\fBUSERDEL_CMD\fR (string)
+.RS 4
+如果定义了，这是删除账户时执行的命令。它应该移除所有属于此用户的的 at/cron/print 等作业(作为第一个参数传递)。
+.sp
+这个脚本的返回值并不被带到账户中去。
+.sp
+Here is an example script, which removes the user\*(Aqs cron, at and print jobs:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+#! /bin/sh
+
+# Check for the required argument\&.
+if [ $# != 1 ]; then
+	echo "Usage: $0 username"
+	exit 1
+fi
+
+# Remove cron jobs\&.
+crontab \-r \-u $1
+
+# Remove at jobs\&.
+# Note that it will remove any jobs owned by the same UID,
+# even if it was shared by a different username\&.
+AT_SPOOL_DIR=/var/spool/cron/atjobs
+find $AT_SPOOL_DIR \-name "[^\&.]*" \-type f \-user $1 \-delete \e;
+
+# Remove print jobs\&.
+lprm $1
+
+# All done\&.
+exit 0
+      
+.fi
+.if n \{\
+.RE
+.\}
+.sp
+.RE
+.PP
+\fBUSERGROUPS_ENAB\fR (boolean)
+.RS 4
+如果 uid 和 gid 相同，用户名和主用户名也相同，使非 root 组的组掩码位和属主位相同 (如：022 \-> 002, 077 \-> 007)。
+.sp
+If set to
+\fIyes\fR,
+\fBuserdel\fR
+will remove the user\*(Aqs group if it contains no more members, and
+\fBuseradd\fR
+will create by default a group with the name of the user\&.
+.RE
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.PP
+/etc/subgid
+.RS 4
+Per user subordinate group IDs\&.
+.RE
+.PP
+/etc/subuid
+.RS 4
+Per user subordinate user IDs\&.
+.RE
+.SH "退出值"
+.PP
+The
+\fBuserdel\fR
+command exits with the following values:
+.PP
+\fI0\fR
+.RS 4
+success
+.RE
+.PP
+\fI1\fR
+.RS 4
+can\*(Aqt update password file
+.RE
+.PP
+\fI2\fR
+.RS 4
+invalid command syntax
+.RE
+.PP
+\fI6\fR
+.RS 4
+specified user doesn\*(Aqt exist
+.RE
+.PP
+\fI8\fR
+.RS 4
+user currently logged in
+.RE
+.PP
+\fI10\fR
+.RS 4
+can\*(Aqt update group file
+.RE
+.PP
+\fI12\fR
+.RS 4
+can\*(Aqt remove home directory
+.RE
+.SH "CAVEATS"
+.PP
+\fBuserdel\fR
+will not allow you to remove an account if there are running processes which belong to this account\&. In that case, you may have to kill those processes or lock the user\*(Aqs password or account and remove the account later\&. The
+\fB\-f\fR
+option can force the deletion of this account\&.
+.PP
+您应该手动检查所以文件系统，以确保没有遗留此用户的文件。
+.PP
+您不能在 NIS 客户端上移除任何 NIS 属性。这必须在 NIS 服务器上执行。
+.PP
+If
+\fBUSERGROUPS_ENAB\fR
+is defined to
+\fIyes\fR
+in
+/etc/login\&.defs,
+\fBuserdel\fR
+will delete the group with the same name as the user\&. To avoid inconsistencies in the passwd and group databases,
+\fBuserdel\fR
+will check that this group is not used as a primary group for another user, and will just warn without deleting the group otherwise\&. The
+\fB\-f\fR
+option can force the deletion of this group\&.
+.SH "参见"
+.PP
+\fBchfn\fR(1),
+\fBchsh\fR(1),
+\fBpasswd\fR(1),
+\fBlogin.defs\fR(5),
+\fBgpasswd\fR(8),
+\fBgroupadd\fR(8),
+\fBgroupdel\fR(8),
+\fBgroupmod\fR(8),
+\fBsubgid\fR(5), \fBsubuid\fR(5),
+\fBuseradd\fR(8),
+\fBusermod\fR(8)\&.
diff --git a/man/zh_CN/man8/usermod.8 b/man/zh_CN/man8/usermod.8
new file mode 100644
index 0000000..270df0a
--- /dev/null
+++ b/man/zh_CN/man8/usermod.8
@@ -0,0 +1,469 @@
+'\" t
+.\"     Title: usermod
+.\"    Author: Julianne Frances Haugh
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "USERMOD" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+usermod \- 修改一个用户账户
+.SH "大纲"
+.HP \w'\fBusermod\fR\ 'u
+\fBusermod\fR [\fI选项\fR] \fI登录\fR
+.SH "描述"
+.PP
+The
+\fBusermod\fR
+command modifies the system account files to reflect the changes that are specified on the command line\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBusermod\fR
+command are:
+.PP
+\fB\-a\fR, \fB\-\-append\fR
+.RS 4
+Add the user to the supplementary group(s)\&. Use only with the
+\fB\-G\fR
+option\&.
+.RE
+.PP
+\fB\-b\fR, \fB\-\-badnames\fR
+.RS 4
+Allow names that do not conform to standards\&.
+.RE
+.PP
+\fB\-c\fR, \fB\-\-comment\fR\ \&\fICOMMENT\fR
+.RS 4
+The new value of the user\*(Aqs password file comment field\&. It is normally modified using the
+\fBchfn\fR(1)
+utility\&.
+.RE
+.PP
+\fB\-d\fR, \fB\-\-home\fR\ \&\fIHOME_DIR\fR
+.RS 4
+用户的新登录目录。
+.sp
+If the
+\fB\-m\fR
+option is given, the contents of the current home directory will be moved to the new home directory, which is created if it does not already exist\&.
+.RE
+.PP
+\fB\-e\fR, \fB\-\-expiredate\fR\ \&\fIEXPIRE_DATE\fR
+.RS 4
+The date on which the user account will be disabled\&. The date is specified in the format
+\fIYYYY\-MM\-DD\fR\&.
+.sp
+An empty
+\fIEXPIRE_DATE\fR
+argument will disable the expiration of the account\&.
+.sp
+This option requires a
+/etc/shadow
+file\&. A
+/etc/shadow
+entry will be created if there were none\&.
+.RE
+.PP
+\fB\-f\fR, \fB\-\-inactive\fR\ \&\fIINACTIVE\fR
+.RS 4
+密码过期之后，账户被彻底禁用之前的天数。
+.sp
+0 表示密码过期时，立即禁用账户；\-1 表示不使用这个功能。
+.sp
+This option requires a
+/etc/shadow
+file\&. A
+/etc/shadow
+entry will be created if there were none\&.
+.RE
+.PP
+\fB\-g\fR, \fB\-\-gid\fR\ \&\fIGROUP\fR
+.RS 4
+用户的新初始登录组的组名或数字代号。此组必须存在。
+.sp
+用户主目录中，属于原来的主组的文件将转交新组所有。
+.sp
+主目录之外的文件所属的组必须手动修改。
+.RE
+.PP
+\fB\-G\fR, \fB\-\-groups\fR\ \&\fIGROUP1\fR[\fI,GROUP2,\&.\&.\&.\fR[\fI,GROUPN\fR]]]
+.RS 4
+A list of supplementary groups which the user is also a member of\&. Each group is separated from the next by a comma, with no intervening whitespace\&. The groups are subject to the same restrictions as the group given with the
+\fB\-g\fR
+option\&.
+.sp
+If the user is currently a member of a group which is not listed, the user will be removed from the group\&. This behaviour can be changed via the
+\fB\-a\fR
+option, which appends the user to the current supplementary group list\&.
+.RE
+.PP
+\fB\-l\fR, \fB\-\-login\fR\ \&\fINEW_LOGIN\fR
+.RS 4
+The name of the user will be changed from
+\fILOGIN\fR
+to
+\fINEW_LOGIN\fR\&. Nothing else is changed\&. In particular, the user\*(Aqs home directory or mail spool should probably be renamed manually to reflect the new login name\&.
+.RE
+.PP
+\fB\-L\fR, \fB\-\-lock\fR
+.RS 4
+Lock a user\*(Aqs password\&. This puts a \*(Aq!\*(Aq in front of the encrypted password, effectively disabling the password\&. You can\*(Aqt use this option with
+\fB\-p\fR
+or
+\fB\-U\fR\&.
+.sp
+Note: if you wish to lock the account (not only access with a password), you should also set the
+\fIEXPIRE_DATE\fR
+to
+\fI1\fR\&.
+.RE
+.PP
+\fB\-m\fR, \fB\-\-move\-home\fR
+.RS 4
+将用户的主目录移动到新位置。
+.sp
+This option is only valid in combination with the
+\fB\-d\fR
+(or
+\fB\-\-home\fR) option\&.
+.sp
+\fBusermod\fR
+will try to adapt the ownership of the files and to copy the modes, ACL and extended attributes, but manual changes might be needed afterwards\&.
+.RE
+.PP
+\fB\-o\fR, \fB\-\-non\-unique\fR
+.RS 4
+When used with the
+\fB\-u\fR
+option, this option allows to change the user ID to a non\-unique value\&.
+.RE
+.PP
+\fB\-p\fR, \fB\-\-password\fR\ \&\fIPASSWORD\fR
+.RS 4
+The encrypted password, as returned by
+\fBcrypt\fR(3)\&.
+.sp
+\fBNote:\fR
+This option is not recommended because the password (or encrypted password) will be visible by users listing the processes\&.
+.sp
+您应该确保密码符合系统的密码政策。
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-P\fR, \fB\-\-prefix\fR\ \&\fIPREFIX_DIR\fR
+.RS 4
+Apply changes in the
+\fIPREFIX_DIR\fR
+directory and use the configuration files from the
+\fIPREFIX_DIR\fR
+directory\&. This option does not chroot and is intended for preparing a cross\-compilation target\&. Some limitations: NIS and LDAP users/groups are not verified\&. PAM authentication is using the host files\&. No SELINUX support\&.
+.RE
+.PP
+\fB\-s\fR, \fB\-\-shell\fR\ \&\fISHELL\fR
+.RS 4
+用户的新登录 shell 的名称。将此字段设置为空会让系统选择默认的登录 shell。
+.RE
+.PP
+\fB\-u\fR, \fB\-\-uid\fR\ \&\fIUID\fR
+.RS 4
+用户 ID 的新数值。
+.sp
+This value must be unique, unless the
+\fB\-o\fR
+option is used\&. The value must be non\-negative\&.
+.sp
+用户的邮箱，用户主目录中属于此用户的文件的属主 ID 也将自动更改。
+.sp
+用户主目录之外文件所有权必须手动修复。
+.sp
+No checks will be performed with regard to the
+\fBUID_MIN\fR,
+\fBUID_MAX\fR,
+\fBSYS_UID_MIN\fR, or
+\fBSYS_UID_MAX\fR
+from
+/etc/login\&.defs\&.
+.RE
+.PP
+\fB\-U\fR, \fB\-\-unlock\fR
+.RS 4
+Unlock a user\*(Aqs password\&. This removes the \*(Aq!\*(Aq in front of the encrypted password\&. You can\*(Aqt use this option with
+\fB\-p\fR
+or
+\fB\-L\fR\&.
+.sp
+Note: if you wish to unlock the account (not only access with a password), you should also set the
+\fIEXPIRE_DATE\fR
+(for example to
+\fI99999\fR, or to the
+\fBEXPIRE\fR
+value from
+/etc/default/useradd)\&.
+.RE
+.PP
+\fB\-v\fR, \fB\-\-add\-subuids\fR\ \&\fIFIRST\fR\-\fILAST\fR
+.RS 4
+Add a range of subordinate uids to the user\*(Aqs account\&.
+.sp
+This option may be specified multiple times to add multiple ranges to a users account\&.
+.sp
+No checks will be performed with regard to
+\fBSUB_UID_MIN\fR,
+\fBSUB_UID_MAX\fR, or
+\fBSUB_UID_COUNT\fR
+from /etc/login\&.defs\&.
+.RE
+.PP
+\fB\-V\fR, \fB\-\-del\-subuids\fR\ \&\fIFIRST\fR\-\fILAST\fR
+.RS 4
+Remove a range of subordinate uids from the user\*(Aqs account\&.
+.sp
+This option may be specified multiple times to remove multiple ranges to a users account\&. When both
+\fB\-\-del\-subuids\fR
+and
+\fB\-\-add\-subuids\fR
+are specified, the removal of all subordinate uid ranges happens before any subordinate uid range is added\&.
+.sp
+No checks will be performed with regard to
+\fBSUB_UID_MIN\fR,
+\fBSUB_UID_MAX\fR, or
+\fBSUB_UID_COUNT\fR
+from /etc/login\&.defs\&.
+.RE
+.PP
+\fB\-w\fR, \fB\-\-add\-subgids\fR\ \&\fIFIRST\fR\-\fILAST\fR
+.RS 4
+Add a range of subordinate gids to the user\*(Aqs account\&.
+.sp
+This option may be specified multiple times to add multiple ranges to a users account\&.
+.sp
+No checks will be performed with regard to
+\fBSUB_GID_MIN\fR,
+\fBSUB_GID_MAX\fR, or
+\fBSUB_GID_COUNT\fR
+from /etc/login\&.defs\&.
+.RE
+.PP
+\fB\-W\fR, \fB\-\-del\-subgids\fR\ \&\fIFIRST\fR\-\fILAST\fR
+.RS 4
+Remove a range of subordinate gids from the user\*(Aqs account\&.
+.sp
+This option may be specified multiple times to remove multiple ranges to a users account\&. When both
+\fB\-\-del\-subgids\fR
+and
+\fB\-\-add\-subgids\fR
+are specified, the removal of all subordinate gid ranges happens before any subordinate gid range is added\&.
+.sp
+No checks will be performed with regard to
+\fBSUB_GID_MIN\fR,
+\fBSUB_GID_MAX\fR, or
+\fBSUB_GID_COUNT\fR
+from /etc/login\&.defs\&.
+.RE
+.PP
+\fB\-Z\fR, \fB\-\-selinux\-user\fR\ \&\fISEUSER\fR
+.RS 4
+用户登陆的 SELinux 用户。
+.sp
+A blank
+\fISEUSER\fR
+will remove the SELinux user mapping for user
+\fILOGIN\fR
+(if any)\&.
+.RE
+.SH "CAVEATS"
+.PP
+You must make certain that the named user is not executing any processes when this command is being executed if the user\*(Aqs numerical user ID, the user\*(Aqs name, or the user\*(Aqs home directory is being changed\&.
+\fBusermod\fR
+checks this on Linux\&. On other platforms it only uses utmp to check if the user is logged in\&.
+.PP
+You must change the owner of any
+\fBcrontab\fR
+files or
+\fBat\fR
+jobs manually\&.
+.PP
+您必须更改 NIS 服务器上的 NIS 相关内容。
+.SH "配置文件"
+.PP
+The following configuration variables in
+/etc/login\&.defs
+change the behavior of this tool:
+.PP
+\fBLASTLOG_UID_MAX\fR (number)
+.RS 4
+Highest user ID number for which the lastlog entries should be updated\&. As higher user IDs are usually tracked by remote user identity and authentication services there is no need to create a huge sparse lastlog file for them\&.
+.sp
+No
+\fBLASTLOG_UID_MAX\fR
+option present in the configuration means that there is no user ID limit for writing lastlog entries\&.
+.RE
+.PP
+\fBMAIL_DIR\fR (string)
+.RS 4
+邮箱目录。修改或删除用户账户时需要处理邮箱，如果没有指定，将使用编译时指定的默认值。
+.RE
+.PP
+\fBMAIL_FILE\fR (string)
+.RS 4
+定义用户邮箱文件的位置(相对于主目录)。
+.RE
+.PP
+The
+\fBMAIL_DIR\fR
+and
+\fBMAIL_FILE\fR
+variables are used by
+\fBuseradd\fR,
+\fBusermod\fR, and
+\fBuserdel\fR
+to create, move, or delete the user\*(Aqs mail spool\&.
+.PP
+If
+\fBMAIL_CHECK_ENAB\fR
+is set to
+\fIyes\fR, they are also used to define the
+\fBMAIL\fR
+environment variable\&.
+.PP
+\fBMAX_MEMBERS_PER_GROUP\fR (number)
+.RS 4
+Maximum members per group entry\&. When the maximum is reached, a new group entry (line) is started in
+/etc/group
+(with the same name, same password, and same GID)\&.
+.sp
+默认值是 0，意味着组中的成员数没有限制。
+.sp
+此功能(分割组)允许限制组文件中的行长度。这对于确保 NIS 组的行比长于 1024 字符。
+.sp
+如果要强制这个限制，可以使用 25。
+.sp
+注意：分割组可能不受所有工具的支持(甚至在 Shadow 工具集中)。您不应该使用这个变量，除非真的需要。
+.RE
+.PP
+\fBSUB_GID_MIN\fR (number), \fBSUB_GID_MAX\fR (number), \fBSUB_GID_COUNT\fR (number)
+.RS 4
+If
+/etc/subuid
+exists, the commands
+\fBuseradd\fR
+and
+\fBnewusers\fR
+(unless the user already have subordinate group IDs) allocate
+\fBSUB_GID_COUNT\fR
+unused group IDs from the range
+\fBSUB_GID_MIN\fR
+to
+\fBSUB_GID_MAX\fR
+for each new user\&.
+.sp
+The default values for
+\fBSUB_GID_MIN\fR,
+\fBSUB_GID_MAX\fR,
+\fBSUB_GID_COUNT\fR
+are respectively 100000, 600100000 and 65536\&.
+.RE
+.PP
+\fBSUB_UID_MIN\fR (number), \fBSUB_UID_MAX\fR (number), \fBSUB_UID_COUNT\fR (number)
+.RS 4
+If
+/etc/subuid
+exists, the commands
+\fBuseradd\fR
+and
+\fBnewusers\fR
+(unless the user already have subordinate user IDs) allocate
+\fBSUB_UID_COUNT\fR
+unused user IDs from the range
+\fBSUB_UID_MIN\fR
+to
+\fBSUB_UID_MAX\fR
+for each new user\&.
+.sp
+The default values for
+\fBSUB_UID_MIN\fR,
+\fBSUB_UID_MAX\fR,
+\fBSUB_UID_COUNT\fR
+are respectively 100000, 600100000 and 65536\&.
+.RE
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.PP
+/etc/login\&.defs
+.RS 4
+Shadow 密码套件配置。
+.RE
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.PP
+/etc/subgid
+.RS 4
+Per user subordinate group IDs\&.
+.RE
+.PP
+/etc/subuid
+.RS 4
+Per user subordinate user IDs\&.
+.RE
+.SH "参见"
+.PP
+\fBchfn\fR(1),
+\fBchsh\fR(1),
+\fBpasswd\fR(1),
+\fBcrypt\fR(3),
+\fBgpasswd\fR(8),
+\fBgroupadd\fR(8),
+\fBgroupdel\fR(8),
+\fBgroupmod\fR(8),
+\fBlogin.defs\fR(5),
+\fBsubgid\fR(5), \fBsubuid\fR(5),
+\fBuseradd\fR(8),
+\fBuserdel\fR(8)\&.
diff --git a/man/zh_CN/man8/vigr.8 b/man/zh_CN/man8/vigr.8
new file mode 100644
index 0000000..ff72d7a
--- /dev/null
+++ b/man/zh_CN/man8/vigr.8
@@ -0,0 +1 @@
+.so man8/vipw.8
diff --git a/man/zh_CN/man8/vipw.8 b/man/zh_CN/man8/vipw.8
new file mode 100644
index 0000000..971d955
--- /dev/null
+++ b/man/zh_CN/man8/vipw.8
@@ -0,0 +1,137 @@
+'\" t
+.\"     Title: vipw
+.\"    Author: Marek Micha\(/lkiewicz
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 2020-01-23
+.\"    Manual: 系统管理命令
+.\"    Source: shadow-utils 4.8.1
+.\"  Language: Chinese Simplified
+.\"
+.TH "VIPW" "8" "2020-01-23" "shadow\-utils 4\&.8\&.1" "系统管理命令"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "名称"
+vipw, vigr \- 编辑密码、组、影子密码或影子组文件。
+.SH "大纲"
+.HP \w'\fBvipw\fR\ 'u
+\fBvipw\fR [\fI选项\fR]
+.HP \w'\fBvigr\fR\ 'u
+\fBvigr\fR [\fI选项\fR]
+.SH "描述"
+.PP
+The
+\fBvipw\fR
+and
+\fBvigr\fR
+commands edits the files
+/etc/passwd
+and
+/etc/group, respectively\&. With the
+\fB\-s\fR
+flag, they will edit the shadow versions of those files,
+/etc/shadow
+and
+/etc/gshadow, respectively\&. The programs will set the appropriate locks to prevent file corruption\&. When looking for an editor, the programs will first try the environment variable
+\fB$VISUAL\fR, then the environment variable
+\fB$EDITOR\fR, and finally the default editor,
+\fBvi\fR(1)\&.
+.SH "选项"
+.PP
+The options which apply to the
+\fBvipw\fR
+and
+\fBvigr\fR
+commands are:
+.PP
+\fB\-g\fR, \fB\-\-group\fR
+.RS 4
+编辑 group 数据库。
+.RE
+.PP
+\fB\-h\fR, \fB\-\-help\fR
+.RS 4
+现实帮助信息并退出。
+.RE
+.PP
+\fB\-p\fR, \fB\-\-passwd\fR
+.RS 4
+编辑 passwd 数据库。
+.RE
+.PP
+\fB\-q\fR, \fB\-\-quiet\fR
+.RS 4
+安静模式。
+.RE
+.PP
+\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
+.RS 4
+Apply changes in the
+\fICHROOT_DIR\fR
+directory and use the configuration files from the
+\fICHROOT_DIR\fR
+directory\&.
+.RE
+.PP
+\fB\-s\fR, \fB\-\-shadow\fR
+.RS 4
+编辑 shadow 或 gshadow 数据库。
+.RE
+.SH "环境变量"
+.PP
+\fBVISUAL\fR
+.RS 4
+要使用的编辑器。
+.RE
+.PP
+\fBEDITOR\fR
+.RS 4
+Editor to be used if
+\fBVISUAL\fR
+is not set\&.
+.RE
+.SH "文件"
+.PP
+/etc/group
+.RS 4
+组账户信息。
+.RE
+.PP
+/etc/gshadow
+.RS 4
+安全组账户信息。
+.RE
+.PP
+/etc/passwd
+.RS 4
+用户账户信息。
+.RE
+.PP
+/etc/shadow
+.RS 4
+安全用户账户信息。
+.RE
+.SH "参见"
+.PP
+\fBvi\fR(1),
+\fBgroup\fR(5),
+\fBgshadow\fR(5)
+,
+\fBpasswd\fR(5), ,
+\fBshadow\fR(5)\&.