237 lines
5.2 KiB
Groff
237 lines
5.2 KiB
Groff
'\" t
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.\" Title: groupmod
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.\" Author: Julianne Frances Haugh
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.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
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.\" Date: 2025-03-19
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.\" Manual: System Management Commands
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.\" Source: shadow-utils 4.17.4
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.\" Language: Chinese Simplified
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.\"
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.TH "GROUPMOD" "8" "2025-03-19" "shadow\-utils 4\&.17\&.4" "System Management Commands"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "名称"
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groupmod \- modify a group definition on the system
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.SH "大纲"
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.HP \w'\fBgroupmod\fR\ 'u
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\fBgroupmod\fR [\fIoptions\fR] \fIGROUP\fR
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.SH "描述"
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.PP
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The
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\fBgroupmod\fR
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command modifies the definition of the specified
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\fIGROUP\fR
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by modifying the appropriate entry in the group database\&.
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.SH "选项"
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.PP
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The options which apply to the
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\fBgroupmod\fR
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command are:
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.PP
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\fB\-a\fR, \fB\-\-append\fR
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.RS 4
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If group members are specified with \-U, append them to the existing member list, rather than replacing it\&.
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.RE
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.PP
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\fB\-g\fR, \fB\-\-gid\fR\ \&\fIGID\fR
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.RS 4
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The group ID of the given
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\fIGROUP\fR
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will be changed to
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\fIGID\fR\&.
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.sp
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The value of
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\fIGID\fR
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must be a non\-negative decimal integer\&. This value must be unique, unless the
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\fB\-o\fR
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option is used\&.
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.sp
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Users who use the group as primary group will be updated to keep the group as their primary group\&.
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.sp
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Any files that have the old group ID and must continue to belong to
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\fIGROUP\fR, must have their group ID changed manually\&.
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.sp
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No checks will be performed with regard to the
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\fBGID_MIN\fR,
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\fBGID_MAX\fR,
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\fBSYS_GID_MIN\fR, or
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\fBSYS_GID_MAX\fR
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from
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/etc/login\&.defs\&.
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.RE
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.PP
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\fB\-h\fR, \fB\-\-help\fR
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.RS 4
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显示帮助信息并退出。
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.RE
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.PP
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\fB\-n\fR, \fB\-\-new\-name\fR\ \&\fINEW_GROUP\fR
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.RS 4
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The name of the group will be changed from
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\fIGROUP\fR
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to
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\fINEW_GROUP\fR
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name\&.
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.RE
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.PP
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\fB\-o\fR, \fB\-\-non\-unique\fR
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.RS 4
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When used with the
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\fB\-g\fR
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option, allow to change the group
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\fIGID\fR
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to a non\-unique value\&.
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.RE
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.PP
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\fB\-p\fR, \fB\-\-password\fR\ \&\fIPASSWORD\fR
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.RS 4
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The encrypted password, as returned by
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\fBcrypt\fR(3)\&.
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.sp
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\fBNote:\fR
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This option is not recommended because the password (or encrypted password) will be visible by users listing the processes\&.
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.sp
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您应该确保密码符合系统的密码政策。
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.RE
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.PP
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\fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR
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.RS 4
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Apply changes in the
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\fICHROOT_DIR\fR
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directory and use the configuration files from the
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\fICHROOT_DIR\fR
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directory\&. Only absolute paths are supported\&.
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.RE
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.PP
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\fB\-P\fR, \fB\-\-prefix\fR\ \&\fIPREFIX_DIR\fR
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.RS 4
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Apply changes in the
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\fIPREFIX_DIR\fR
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directory and use the configuration files from the
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\fIPREFIX_DIR\fR
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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\&.
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.RE
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.PP
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\fB\-U\fR, \fB\-\-users\fR
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.RS 4
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A comma\-separated list of usernames to add as members of the group\&.
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.sp
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The default behavior (if the
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\fB\-g\fR
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and
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\fB\-U\fR
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options are not specified) is defined by the
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\fBUSERGROUPS_ENAB\fR
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variable in
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/etc/login\&.defs\&.
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.RE
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.SH "配置文件"
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.PP
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The following configuration variables in
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/etc/login\&.defs
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change the behavior of this tool:
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.SH "文件"
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.PP
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/etc/group
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.RS 4
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组账户信息。
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.RE
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.PP
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/etc/gshadow
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.RS 4
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安全组账户信息。
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.RE
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.PP
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/etc/login\&.defs
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.RS 4
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Shadow 密码套件配置。
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.RE
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.PP
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/etc/passwd
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.RS 4
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用户账户信息。
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.RE
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.SH "退出值"
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.PP
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The
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\fBgroupmod\fR
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command exits with the following values:
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.PP
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\fI0\fR
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.RS 4
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E_SUCCESS: success
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.RE
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.PP
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\fI2\fR
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.RS 4
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E_USAGE: invalid command syntax
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.RE
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.PP
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\fI3\fR
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.RS 4
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E_BAD_ARG: invalid argument to option
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.RE
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.PP
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\fI4\fR
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.RS 4
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E_GID_IN_USE: group id already in use
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.RE
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.PP
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\fI6\fR
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.RS 4
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E_NOTFOUND: specified group doesn\*(Aqt exist
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.RE
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.PP
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\fI9\fR
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.RS 4
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E_NAME_IN_USE: group name already in use
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.RE
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.PP
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\fI10\fR
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.RS 4
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E_GRP_UPDATE: can\*(Aqt update group file
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.RE
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.PP
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\fI11\fR
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.RS 4
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E_CLEANUP_SERVICE: can\*(Aqt setup cleanup service
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.RE
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.PP
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\fI12\fR
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.RS 4
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E_PAM_USERNAME: can\*(Aqt determine your username for use with pam
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.RE
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.PP
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\fI13\fR
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.RS 4
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E_PAM_ERROR: pam returned an error, see syslog facility id groupmod for the PAM error message
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.RE
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.SH "参见"
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.PP
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\fBchfn\fR(1),
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\fBchsh\fR(1),
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\fBpasswd\fR(1),
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\fBgpasswd\fR(8),
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\fBgroupadd\fR(8),
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\fBgroupdel\fR(8),
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\fBlogin.defs\fR(5),
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\fBuseradd\fR(8),
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\fBuserdel\fR(8),
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\fBusermod\fR(8)\&.
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