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1 | <?xml version='1.0'?> <!--*-nxml-*--> |
2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | |
798d3a52 | 3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> |
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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 | |
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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 | |
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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 | |
5430f7f2 | 18 | Lesser General Public License for more details. |
160cd5c9 | 19 | |
5430f7f2 | 20 | You should have received a copy of the GNU Lesser General Public License |
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21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
22 | --> | |
23 | ||
dfdebb1b | 24 | <refentry id="shutdown" |
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25 | xmlns:xi="http://www.w3.org/2001/XInclude"> |
26 | ||
27 | <refentryinfo> | |
28 | <title>shutdown</title> | |
29 | <productname>systemd</productname> | |
30 | ||
31 | <authorgroup> | |
32 | <author> | |
33 | <contrib>Developer</contrib> | |
34 | <firstname>Lennart</firstname> | |
35 | <surname>Poettering</surname> | |
36 | <email>lennart@poettering.net</email> | |
37 | </author> | |
38 | </authorgroup> | |
39 | </refentryinfo> | |
40 | ||
41 | <refmeta> | |
42 | <refentrytitle>shutdown</refentrytitle> | |
43 | <manvolnum>8</manvolnum> | |
44 | </refmeta> | |
45 | ||
46 | <refnamediv> | |
47 | <refname>shutdown</refname> | |
48 | <refpurpose>Halt, power-off or reboot the machine</refpurpose> | |
49 | </refnamediv> | |
50 | ||
51 | <refsynopsisdiv> | |
52 | <cmdsynopsis> | |
53 | <command>shutdown</command> | |
54 | <arg choice="opt" rep="repeat">OPTIONS</arg> | |
55 | <arg choice="opt">TIME</arg> | |
56 | <arg choice="opt" rep="repeat">WALL</arg> | |
57 | </cmdsynopsis> | |
58 | </refsynopsisdiv> | |
59 | ||
60 | <refsect1> | |
61 | <title>Description</title> | |
62 | ||
63 | <para><command>shutdown</command> may be used to halt, power-off | |
64 | or reboot the machine.</para> | |
65 | ||
66 | <para>The first argument may be a time string (which is usually | |
67 | <literal>now</literal>). Optionally, this may be followed by a | |
68 | wall message to be sent to all logged-in users before going | |
69 | down.</para> | |
70 | ||
71 | <para>The time string may either be in the format | |
72 | <literal>hh:mm</literal> for hour/minutes specifying the time to | |
73 | execute the shutdown at, specified in 24h clock format. | |
74 | Alternatively it may be in the syntax <literal>+m</literal> | |
75 | referring to the specified number of minutes m from now. | |
76 | <literal>now</literal> is an alias for <literal>+0</literal>, i.e. | |
77 | for triggering an immediate shutdown. If no time argument is | |
78 | specified, <literal>+1</literal> is implied.</para> | |
79 | ||
80 | <para>Note that to specify a wall message you must specify a time | |
81 | argument, too.</para> | |
82 | ||
83 | <para>If the time argument is used, 5 minutes before the system | |
84 | goes down the <filename>/run/nologin</filename> file is created to | |
85 | ensure that further logins shall not be allowed.</para> | |
86 | </refsect1> | |
87 | ||
88 | <refsect1> | |
89 | <title>Options</title> | |
90 | ||
91 | <para>The following options are understood:</para> | |
92 | ||
93 | <variablelist> | |
94 | <varlistentry> | |
95 | <term><option>--help</option></term> | |
96 | ||
97 | <xi:include href="standard-options.xml" xpointer="help-text" /> | |
98 | </varlistentry> | |
99 | ||
100 | <varlistentry> | |
101 | <term><option>-H</option></term> | |
102 | <term><option>--halt</option></term> | |
103 | ||
104 | <listitem><para>Halt the machine.</para></listitem> | |
105 | </varlistentry> | |
106 | ||
107 | <varlistentry> | |
108 | <term><option>-P</option></term> | |
109 | <term><option>--poweroff</option></term> | |
110 | ||
111 | <listitem><para>Power-off the machine (the | |
112 | default).</para></listitem> | |
113 | </varlistentry> | |
114 | ||
115 | <varlistentry> | |
116 | <term><option>-r</option></term> | |
117 | <term><option>--reboot</option></term> | |
118 | ||
119 | <listitem><para>Reboot the | |
120 | machine.</para></listitem> | |
121 | </varlistentry> | |
122 | ||
123 | <varlistentry> | |
124 | <term><option>-h</option></term> | |
125 | ||
126 | <listitem><para>Equivalent to <option>--poweroff</option>, | |
127 | unless <option>--halt</option> is specified.</para></listitem> | |
128 | </varlistentry> | |
129 | ||
130 | <varlistentry> | |
131 | <term><option>-k</option></term> | |
132 | ||
133 | <listitem><para>Do not halt, power-off, reboot, just write | |
134 | wall message.</para></listitem> | |
135 | </varlistentry> | |
136 | ||
137 | <varlistentry> | |
138 | <term><option>--no-wall</option></term> | |
139 | ||
140 | <listitem><para>Do not send wall | |
141 | message before | |
142 | halt, power-off, reboot.</para></listitem> | |
143 | </varlistentry> | |
144 | ||
145 | <varlistentry> | |
146 | <term><option>-c</option></term> | |
147 | ||
148 | <listitem><para>Cancel a pending shutdown. This may be used | |
149 | cancel the effect of an invocation of | |
150 | <command>shutdown</command> with a time argument that is not | |
151 | <literal>+0</literal> or | |
152 | <literal>now</literal>.</para></listitem> | |
153 | </varlistentry> | |
154 | ||
155 | </variablelist> | |
156 | </refsect1> | |
157 | ||
158 | <refsect1> | |
159 | <title>Exit status</title> | |
160 | ||
161 | <para>On success, 0 is returned, a non-zero failure code | |
162 | otherwise.</para> | |
163 | </refsect1> | |
164 | ||
165 | <refsect1> | |
166 | <title>See Also</title> | |
167 | <para> | |
168 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
169 | <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
170 | <citerefentry><refentrytitle>halt</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
171 | <citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
172 | </para> | |
173 | </refsect1> | |
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174 | |
175 | </refentry> |