Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ 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
- General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
+ 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="shutdown">
+<refentry id="shutdown"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>shutdown</title>
<refsynopsisdiv>
<cmdsynopsis>
- <command>shutdown <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt">
now</arg> <arg choice="opt" rep="repeat">WALL</arg></command>
+ <command>shutdown <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt">
TIME</arg> <arg choice="opt" rep="repeat">WALL</arg></command>
</cmdsynopsis>
</refsynopsisdiv>
<para><command>shutdown</command> may be used to halt,
power-off or reboot the machine.</para>
- <para>The first argument should be the string
- <command>now</command> which however is ignored by
- this implementation. Optionally, this may be followed
- by a wall message to be sent to all logged-in users
- before going down.</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>
<varlistentry>
<term><option>--help</option></term>
- <listitem><para>Prints a short help
- text and exits.</para></listitem>
+ <xi:include href="standard-options.xml" xpointer="help-text" />
</varlistentry>
<varlistentry>
</varlistentry>
<varlistentry>
- <term><option>--k</option></term>
+ <term><option>-k</option></term>
- <listitem><para>Don't halt, power-off,
+ <listitem><para>Do not halt, power-off,
reboot, just write wall
message.</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--no-wall</option></term>
- <listitem><para>Don't send wall
+ <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
+ <para>On success, 0 is returned, a non-zero failure
code otherwise.</para>
</refsect1>
- <refsect1>
- <title>Notes</title>
-
- <para>This is a legacy command 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>halt</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ <citerefentry><refentrytitle>halt</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
~ianmdlvl / elogind.git / blobdiff