+ <varlistentry>
+ <term><command>halt</command></term>
+
+ <listitem><para>Shut down and halt the
+ system. This is mostly equivalent to
+ <command>start halt.target</command>
+ but also prints a wall message to all
+ users. If combined with
+ <option>--force</option> shutdown of
+ all running services is skipped,
+ however all processes are killed and
+ all file systems are unmounted or
+ mounted read-only, immediately
+ followed by the system halt. If
+ <option>--force</option> is specified
+ twice the the operation is immediately
+ executed without terminating any
+ processes or unmounting any file
+ systems. This may result in data
+ loss.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><command>poweroff</command></term>
+
+ <listitem><para>Shut down and
+ power-off the system. This is mostly
+ equivalent to <command>start
+ poweroff.target</command> but also
+ prints a wall message to all users. If
+ combined with <option>--force</option>
+ shutdown of all running services is
+ skipped, however all processes are
+ killed and all file systems are
+ unmounted or mounted read-only,
+ immediately followed by the powering
+ off. If <option>--force</option> is
+ specified twice the the operation is
+ immediately executed without
+ terminating any processes or
+ unmounting any file systems. This may
+ result in data loss.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><command>reboot</command></term>
+
+ <listitem><para>Shut down and reboot
+ the system. This is mostly equivalent
+ to <command>start
+ reboot.target</command> but also
+ prints a wall message to all users. If
+ combined with <option>--force</option>
+ shutdown of all running services is
+ skipped, however all processes are
+ killed and all file systems are
+ unmounted or mounted read-only,
+ immediately followed by the reboot. If
+ <option>--force</option> is specified
+ twice the the operation is immediately
+ executed without terminating any
+ processes or unmounting any file
+ systems. This may result in data
+ loss.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><command>kexec</command></term>
+
+ <listitem><para>Shut down and reboot
+ the system via kexec. This is mostly
+ equivalent to <command>start
+ kexec.target</command> but also prints
+ a wall message to all users. If
+ combined with <option>--force</option>
+ shutdown of all running services is
+ skipped, however all processes are killed
+ and all file systems are unmounted or
+ mounted read-only, immediately
+ followed by the
+ reboot.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><command>exit</command></term>
+
+ <listitem><para>Ask the systemd
+ manager to quit. This is only
+ supported for user service managers
+ (i.e. in conjunction with the
+ <option>--user</option> option) and
+ will fail otherwise.</para></listitem>
+ </varlistentry>