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182 lines
7.3 KiB
XML
182 lines
7.3 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="shutdown"
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>shutdown</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>shutdown</refentrytitle>
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<manvolnum>8</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>shutdown</refname>
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<refpurpose>Halt, power-off or reboot the machine</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>shutdown <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt">TIME</arg> <arg choice="opt" rep="repeat">WALL</arg></command>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><command>shutdown</command> may be used to halt,
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power-off or reboot the machine.</para>
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<para>The first argument may be a time string (which
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is usually <literal>now</literal>). Optionally, this
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may be followed by a wall message to be sent to all
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logged-in users before going down.</para>
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<para>The time string may either be in the format
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<literal>hh:mm</literal> for hour/minutes specifying
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the time to execute the shutdown at, specified in 24h
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clock format. Alternatively it may be in the syntax
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<literal>+m</literal> referring to the specified
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number of minutes m from now. <literal>now</literal>
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is an alias for <literal>+0</literal>, i.e. for
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triggering an immediate shutdown. If no time argument
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is specified, <literal>+1</literal> is
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implied.</para>
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<para>Note that to specify a wall message you must
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specify a time argument, too.</para>
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<para>If the time argument is used, 5 minutes
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before the system goes down the
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<filename>/run/nologin</filename> file is created to
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ensure that further logins shall not be
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allowed.</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>The following options are understood:</para>
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<variablelist>
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<varlistentry>
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<term><option>--help</option></term>
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<xi:include href="standard-options.xml" xpointer="help-text" />
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</varlistentry>
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<varlistentry>
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<term><option>-H</option></term>
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<term><option>--halt</option></term>
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<listitem><para>Halt the machine.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-P</option></term>
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<term><option>--poweroff</option></term>
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<listitem><para>Power-off the
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machine (the default).</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-r</option></term>
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<term><option>--reboot</option></term>
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<listitem><para>Reboot the
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machine.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-h</option></term>
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<listitem><para>Equivalent to
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<option>--poweroff</option>, unless
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<option>--halt</option> is
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specified.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-k</option></term>
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<listitem><para>Do not halt, power-off,
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reboot, just write wall
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message.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--no-wall</option></term>
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<listitem><para>Do not send wall
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message before
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halt, power-off, reboot.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-c</option></term>
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<listitem><para>Cancel a pending
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shutdown. This may be used cancel the
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effect of an invocation of
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<command>shutdown</command> with a
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time argument that is not
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<literal>+0</literal> or
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<literal>now</literal>.</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Exit status</title>
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<para>On success, 0 is returned, a non-zero failure
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code otherwise.</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>halt</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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