systemd/man/halt.xml

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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
        "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">

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<refentry id="halt">

        <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 <arg choice="opt" rep="repeat">OPTIONS</arg></command>
                </cmdsynopsis>
                <cmdsynopsis>
                        <command>poweroff <arg choice="opt" rep="repeat">OPTIONS</arg></command>
                </cmdsynopsis>
                <cmdsynopsis>
                        <command>reboot <arg choice="opt" rep="repeat">OPTIONS</arg></command>
                </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>

                                <listitem><para>Prints a short help
                                text and exits.</para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><option>--halt</option></term>

                                <listitem><para>Halt the machine,
                                regardless 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 which one of the three
                                commands is invoked.</para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><option>--reboot</option></term>

                                <listitem><para>Reboot the machine,
                                regardless 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. Don't 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, don't actually halt,
                                power-off, reboot.</para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><option>-d</option></term>
                                <term><option>--no-wtmp</option></term>

                                <listitem><para>Don't 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>Don't 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>
                </para>
        </refsect1>

</refentry>