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<?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
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
<refentry id="halt"
xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>halt</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>halt</refentrytitle>
<manvolnum>8</manvolnum>
</refmeta>
<refnamediv>
<refname>halt</refname>
<refname>poweroff</refname>
<refname>reboot</refname>
<refpurpose>Halt, power-off or reboot the machine</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>halt</command>
<arg choice="opt" rep="repeat">OPTIONS</arg>
</cmdsynopsis>
<cmdsynopsis>
<command>poweroff</command>
<arg choice="opt" rep="repeat">OPTIONS</arg>
</cmdsynopsis>
<cmdsynopsis>
<command>reboot</command>
<arg choice="opt" rep="repeat">OPTIONS</arg>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><command>halt</command>, <command>poweroff</command>,
<command>reboot</command> may be used to halt, power-off or reboot
the machine.</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>--halt</option></term>
<listitem><para>Halt the machine, regardless of which one of
the three commands is invoked.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-p</option></term>
<term><option>--poweroff</option></term>
<listitem><para>Power-off the machine, regardless of which one
of the three commands is invoked.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--reboot</option></term>
<listitem><para>Reboot the machine, regardless of which one of
the three commands is invoked.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-f</option></term>
<term><option>--force</option></term>
<listitem><para>Force immediate halt, power-off, reboot. Do
not contact the init system.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-w</option></term>
<term><option>--wtmp-only</option></term>
<listitem><para>Only write wtmp shutdown entry, do not
actually halt, power-off, reboot.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-d</option></term>
<term><option>--no-wtmp</option></term>
<listitem><para>Do not write wtmp shutdown
entry.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>-n</option></term>
<term><option>--no-sync</option></term>
<listitem><para>Don't sync hard disks/storage media before
halt, power-off, reboot.</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>
</variablelist>
</refsect1>
<refsect1>
<title>Exit status</title>
<para>On success, 0 is returned, a non-zero failure code
otherwise.</para>
</refsect1>
<refsect1>
<title>Notes</title>
<para>These are legacy commands available for compatibility
only.</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>shutdown</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>
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