man/halt.xml

   1 <?xml version='1.0'?> <!--*-nxml-*-->
   2 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   3         "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
   4
   5 <!--
   6   This file is part of systemd.
   7
   8   Copyright 2010 Lennart Poettering
   9
  10   systemd is free software; you can redistribute it and/or modify it
  11   under the terms of the GNU Lesser General Public License as published by
  12   the Free Software Foundation; either version 2.1 of the License, or
  13   (at your option) any later version.
  14
  15   systemd is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   Lesser General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  22 -->
  23
  24 <refentry id="halt">
  25
  26         <refentryinfo>
  27                 <title>halt</title>
  28                 <productname>systemd</productname>
  29
  30                 <authorgroup>
  31                         <author>
  32                                 <contrib>Developer</contrib>
  33                                 <firstname>Lennart</firstname>
  34                                 <surname>Poettering</surname>
  35                                 <email>lennart@poettering.net</email>
  36                         </author>
  37                 </authorgroup>
  38         </refentryinfo>
  39
  40         <refmeta>
  41                 <refentrytitle>halt</refentrytitle>
  42                 <manvolnum>8</manvolnum>
  43         </refmeta>
  44
  45         <refnamediv>
  46                 <refname>halt</refname>
  47                 <refname>poweroff</refname>
  48                 <refname>reboot</refname>
  49                 <refpurpose>Halt, power-off or reboot the machine</refpurpose>
  50         </refnamediv>
  51
  52         <refsynopsisdiv>
  53                 <cmdsynopsis>
  54                         <command>halt <arg choice="opt" rep="repeat">OPTIONS</arg></command>
  55                 </cmdsynopsis>
  56                 <cmdsynopsis>
  57                         <command>poweroff <arg choice="opt" rep="repeat">OPTIONS</arg></command>
  58                 </cmdsynopsis>
  59                 <cmdsynopsis>
  60                         <command>reboot <arg choice="opt" rep="repeat">OPTIONS</arg></command>
  61                 </cmdsynopsis>
  62         </refsynopsisdiv>
  63
  64         <refsect1>
  65                 <title>Description</title>
  66
  67                 <para><command>halt</command>,
  68                 <command>poweroff</command>, <command>reboot</command>
  69                 may be used to halt, power-off or reboot the
  70                 machine.</para>
  71
  72         </refsect1>
  73
  74         <refsect1>
  75                 <title>Options</title>
  76
  77                 <para>The following options are understood:</para>
  78
  79                 <variablelist>
  80                         <varlistentry>
  81                                 <term><option>--help</option></term>
  82
  83                                 <listitem><para>Prints a short help
  84                                 text and exits.</para></listitem>
  85                         </varlistentry>
  86
  87                         <varlistentry>
  88                                 <term><option>--halt</option></term>
  89
  90                                 <listitem><para>Halt the machine,
  91                                 regardless which one of the three
  92                                 commands is invoked.</para></listitem>
  93                         </varlistentry>
  94
  95                         <varlistentry>
  96                                 <term><option>-p</option></term>
  97                                 <term><option>--poweroff</option></term>
  98
  99                                 <listitem><para>Power-off the machine,
 100                                 regardless which one of the three
 101                                 commands is invoked.</para></listitem>
 102                         </varlistentry>
 103
 104                         <varlistentry>
 105                                 <term><option>--reboot</option></term>
 106
 107                                 <listitem><para>Reboot the machine,
 108                                 regardless which one of the three
 109                                 commands is invoked.</para></listitem>
 110                         </varlistentry>
 111
 112                         <varlistentry>
 113                                 <term><option>-f</option></term>
 114                                 <term><option>--force</option></term>
 115
 116                                 <listitem><para>Force immediate halt,
 117                                 power-off, reboot. Don't contact the
 118                                 init system.</para></listitem>
 119                         </varlistentry>
 120
 121                         <varlistentry>
 122                                 <term><option>-w</option></term>
 123                                 <term><option>--wtmp-only</option></term>
 124
 125                                 <listitem><para>Only write wtmp
 126                                 shutdown entry, don't actually halt,
 127                                 power-off, reboot.</para></listitem>
 128                         </varlistentry>
 129
 130                         <varlistentry>
 131                                 <term><option>-d</option></term>
 132                                 <term><option>--no-wtmp</option></term>
 133
 134                                 <listitem><para>Don't write wtmp
 135                                 shutdown entry.</para></listitem>
 136                         </varlistentry>
 137
 138                         <varlistentry>
 139                                 <term><option>-n</option></term>
 140                                 <term><option>--no-sync</option></term>
 141
 142                                 <listitem><para>Don't sync hard disks/storage media before
 143                                 halt, power-off,
 144                                 reboot.</para></listitem>
 145                         </varlistentry>
 146
 147                         <varlistentry>
 148                                 <term><option>--no-wall</option></term>
 149
 150                                 <listitem><para>Don't send wall
 151                                 message before
 152                                 halt, power-off, reboot.</para></listitem>
 153                         </varlistentry>
 154                 </variablelist>
 155         </refsect1>
 156
 157         <refsect1>
 158                 <title>Exit status</title>
 159
 160                 <para>On success 0 is returned, a non-zero failure
 161                 code otherwise.</para>
 162         </refsect1>
 163
 164         <refsect1>
 165                 <title>Notes</title>
 166
 167                 <para>These are legacy commands available for
 168                 compatibility only.</para>
 169         </refsect1>
 170
 171         <refsect1>
 172                 <title>See Also</title>
 173                 <para>
 174                         <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 175                         <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 176                         <citerefentry><refentrytitle>shutdown</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 177                         <citerefentry><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>
 178                 </para>
 179         </refsect1>
 180
 181 </refentry>