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systemd/man/shutdown.xml
Zbigniew Jędrzejewski-Szmek 11a1589223 tree-wide: drop license boilerplate
Files which are installed as-is (any .service and other unit files, .conf
files, .policy files, etc), are left as is. My assumption is that SPDX
identifiers are not yet that well known, so it's better to retain the
extended header to avoid any doubt.

I also kept any copyright lines. We can probably remove them, but it'd nice to
obtain explicit acks from all involved authors before doing that.
2018-04-06 18:58:55 +02:00

165 lines
4.8 KiB
XML

<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!--
SPDX-License-Identifier: LGPL-2.1+
This file is part of systemd.
Copyright 2010 Lennart Poettering
-->
<refentry id="shutdown"
xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>shutdown</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>Developer</contrib>
<firstname>Lennart</firstname>
<surname>Poettering</surname>
<email>lennart@poettering.net</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>shutdown</refentrytitle>
<manvolnum>8</manvolnum>
</refmeta>
<refnamediv>
<refname>shutdown</refname>
<refpurpose>Halt, power-off or reboot the machine</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>shutdown</command>
<arg choice="opt" rep="repeat">OPTIONS</arg>
<arg choice="opt">TIME</arg>
<arg choice="opt" rep="repeat">WALL</arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><command>shutdown</command> may be used to halt, power-off
or reboot the machine.</para>
<para>The first argument may be a time string (which is usually
<literal>now</literal>). Optionally, this may be followed by a
wall message to be sent to all logged-in users before going
down.</para>
<para>The time string may either be in the format
<literal>hh:mm</literal> for hour/minutes specifying the time to
execute the shutdown at, specified in 24h clock format.
Alternatively it may be in the syntax <literal>+m</literal>
referring to the specified number of minutes m from now.
<literal>now</literal> is an alias for <literal>+0</literal>, i.e.
for triggering an immediate shutdown. If no time argument is
specified, <literal>+1</literal> is implied.</para>
<para>Note that to specify a wall message you must specify a time
argument, too.</para>
<para>If the time argument is used, 5 minutes before the system
goes down the <filename>/run/nologin</filename> file is created to
ensure that further logins shall not be allowed.</para>
</refsect1>
<refsect1>
<title>Options</title>
<para>The following options are understood:</para>
<variablelist>
<varlistentry>
<term><option>--help</option></term>
<xi:include href="standard-options.xml" xpointer="help-text" />
</varlistentry>
<varlistentry>
<term><option>-H</option></term>
<term><option>--halt</option></term>
<listitem><para>Halt the machine.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-P</option></term>
<term><option>--poweroff</option></term>
<listitem><para>Power-off the machine (the
default).</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-r</option></term>
<term><option>--reboot</option></term>
<listitem><para>Reboot the
machine.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-h</option></term>
<listitem><para>Equivalent to <option>--poweroff</option>,
unless <option>--halt</option> is specified.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-k</option></term>
<listitem><para>Do not halt, power-off, reboot, just write
wall message.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--no-wall</option></term>
<listitem><para>Do not send wall
message before
halt, power-off, reboot.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-c</option></term>
<listitem><para>Cancel a pending shutdown. This may be used
cancel the effect of an invocation of
<command>shutdown</command> with a time argument that is not
<literal>+0</literal> or
<literal>now</literal>.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Exit status</title>
<para>On success, 0 is returned, a non-zero failure code
otherwise.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>halt</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>