summaryrefslogtreecommitdiffstats
path: root/man/lastlog.8.xml
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:54:37 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:54:37 +0000
commit97c26c1924b076ef23ebe4381558e8aa025712b2 (patch)
tree109724175f07436696f51b14b5abbd3f4d704d6d /man/lastlog.8.xml
parentInitial commit. (diff)
downloadshadow-97c26c1924b076ef23ebe4381558e8aa025712b2.tar.xz
shadow-97c26c1924b076ef23ebe4381558e8aa025712b2.zip
Adding upstream version 1:4.13+dfsg1.upstream/1%4.13+dfsg1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man/lastlog.8.xml')
-rw-r--r--man/lastlog.8.xml221
1 files changed, 221 insertions, 0 deletions
diff --git a/man/lastlog.8.xml b/man/lastlog.8.xml
new file mode 100644
index 0000000..7a4ba96
--- /dev/null
+++ b/man/lastlog.8.xml
@@ -0,0 +1,221 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ SPDX-FileCopyrightText: 1992 , Julianne Frances Haugh
+ SPDX-FileCopyrightText: 1992 , Phillip Street
+ SPDX-FileCopyrightText: 2007 - 2011, Nicolas François
+ SPDX-License-Identifier: BSD-3-Clause
+-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.5//EN"
+ "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY LASTLOG_UID_MAX SYSTEM "login.defs.d/LASTLOG_UID_MAX.xml">
+<!-- SHADOW-CONFIG-HERE -->
+]>
+<refentry id='lastlog.8'>
+ <!-- $Id$ -->
+ <refentryinfo>
+ <author>
+ <firstname>Julianne Frances</firstname>
+ <surname>Haugh</surname>
+ <contrib>Creation, 1992</contrib>
+ </author>
+ <author>
+ <firstname>Thomas</firstname>
+ <surname>Kłoczko</surname>
+ <email>kloczek@pld.org.pl</email>
+ <contrib>shadow-utils maintainer, 2000 - 2007</contrib>
+ </author>
+ <author>
+ <firstname>Nicolas</firstname>
+ <surname>François</surname>
+ <email>nicolas.francois@centraliens.net</email>
+ <contrib>shadow-utils maintainer, 2007 - now</contrib>
+ </author>
+ </refentryinfo>
+ <refmeta>
+ <refentrytitle>lastlog</refentrytitle>
+ <manvolnum>8</manvolnum>
+ <refmiscinfo class="sectdesc">System Management Commands</refmiscinfo>
+ <refmiscinfo class="source">shadow-utils</refmiscinfo>
+ <refmiscinfo class="version">&SHADOW_UTILS_VERSION;</refmiscinfo>
+ </refmeta>
+ <refnamediv id='name'>
+ <refname>lastlog</refname>
+ <refpurpose>reports the most recent login of all users or of a given user</refpurpose>
+ </refnamediv>
+ <!-- body begins here -->
+ <refsynopsisdiv id='synopsis'>
+ <cmdsynopsis>
+ <command>lastlog</command>
+ <arg choice='opt'>
+ <replaceable>options</replaceable>
+ </arg>
+ </cmdsynopsis>
+ </refsynopsisdiv>
+
+ <refsect1 id='description'>
+ <title>DESCRIPTION</title>
+ <para>
+ <command>lastlog</command> formats and prints the contents of the last
+ login log <filename>/var/log/lastlog</filename> file. The
+ <emphasis>login-name</emphasis>, <emphasis>port</emphasis>, and
+ <emphasis>last login time</emphasis> will be printed. The default (no
+ flags) causes lastlog entries to be printed, sorted by their order in
+ <filename>/etc/passwd</filename>.
+ </para>
+ </refsect1>
+
+ <refsect1 id='options'>
+ <title>OPTIONS</title>
+ <para>
+ The options which apply to the <command>lastlog</command> command are:
+ </para>
+ <variablelist remap='IP'>
+ <varlistentry>
+ <term>
+ <option>-b</option>, <option>--before</option>&nbsp;<replaceable>DAYS</replaceable>
+ </term>
+ <listitem>
+ <para>
+ Print only lastlog records older than <replaceable>DAYS</replaceable>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>
+ <option>-C</option>, <option>--clear</option>
+ </term>
+ <listitem>
+ <para>
+ Clear lastlog record of a user. This option can be used only together
+ with <option>-u</option> (<option>--user</option>)).
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>
+ <option>-h</option>, <option>--help</option>
+ </term>
+ <listitem>
+ <para>Display help message and exit.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>
+ <option>-R</option>, <option>--root</option>&nbsp;<replaceable>CHROOT_DIR</replaceable>
+ </term>
+ <listitem>
+ <para>
+ Apply changes in the <replaceable>CHROOT_DIR</replaceable>
+ directory and use the configuration files from the
+ <replaceable>CHROOT_DIR</replaceable> directory.
+ Only absolute paths are supported.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>
+ <option>-S</option>, <option>--set</option>
+ </term>
+ <listitem>
+ <para>
+ Set lastlog record of a user to the current time. This option can be
+ used only together with <option>-u</option> (<option>--user</option>)).
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>
+ <option>-t</option>, <option>--time</option>&nbsp;<replaceable>DAYS</replaceable>
+ </term>
+ <listitem>
+ <para>
+ Print the lastlog records more recent than
+ <replaceable>DAYS</replaceable>.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>
+ <option>-u</option>, <option>--user</option>&nbsp;<replaceable>LOGIN</replaceable>|<replaceable>RANGE</replaceable>
+ </term>
+ <listitem>
+ <para>
+ Print the lastlog record of the specified user(s).
+ </para>
+ <para>
+ The users can be specified by a login name, a numerical user ID,
+ or a <replaceable>RANGE</replaceable> of users. This
+ <replaceable>RANGE</replaceable> of users can be specified with a
+ min and max values (<replaceable>UID_MIN-UID_MAX</replaceable>), a
+ max value (<replaceable>-UID_MAX</replaceable>), or a min value
+ (<replaceable>UID_MIN-</replaceable>).
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+
+ <para>
+ If the user has never logged in the message <emphasis>** Never logged
+ in**</emphasis> will be displayed instead of the port and time.
+ </para>
+
+ <para>
+ Only the entries for the current users of the system will be
+ displayed. Other entries may exist for users that were deleted
+ previously.
+ </para>
+ </refsect1>
+
+ <refsect1 id='note'>
+ <title>NOTE</title>
+ <para>
+ The <filename>lastlog</filename> 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 "<command>ls -l</command>" (which can indicate a really big file if
+ you have in <filename>passwd</filename> users with a high UID). You can
+ display its real size with "<command>ls -s</command>".
+ </para>
+ </refsect1>
+
+ <refsect1 id='configuration'>
+ <title>CONFIGURATION</title>
+ <para>
+ The following configuration variables in
+ <filename>/etc/login.defs</filename> change the behavior of this
+ tool:
+ </para>
+ <variablelist>
+ &LASTLOG_UID_MAX;
+ </variablelist>
+ </refsect1>
+
+ <refsect1 id='files'>
+ <title>FILES</title>
+ <variablelist>
+ <varlistentry>
+ <term><filename>/var/log/lastlog</filename></term>
+ <listitem>
+ <para>Database times of previous user logins.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1 id='caveats'>
+ <title>CAVEATS</title>
+ <para>
+ 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).
+ </para>
+ <para>
+ Having high UIDs can create problems when handling the <term><filename>
+ /var/log/lastlog</filename></term> with external tools. Although the
+ actual file is sparse and does not use too much space, certain
+ applications are not designed to identify sparse files by default and may
+ require a specific option to handle them.
+ </para>
+ </refsect1>
+</refentry>