<variablelist>
<varlistentry>
<term><option>--help</option></term>
- <term><option>--h</option></term>
+ <term><option>-h</option></term>
<listitem><para>Prints a short help
text and exits.</para></listitem>
<varlistentry>
<term><option>--type=</option></term>
+ <term><option>-t</option></term>
<listitem><para>When listing units,
limit display to certain unit
similar.</para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><option>--property=</option></term>
+ <term><option>-p</option></term>
+
+ <listitem><para>When showing
+ unit/job/manager information, limit
+ display to certain property names. If
+ not specified all set properties are
+ shown. The argument should be a
+ property name, such as
+ <literal>MainPID</literal>.</para></listitem>
+ </varlistentry>
+
<varlistentry>
<term><option>--all</option></term>
+ <term><option>-a</option></term>
<listitem><para>When listing units,
show all units, regardless of their
- state, including inactive
- units.</para></listitem>
+ state, including inactive units. When
+ showing unit/job/manager information,
+ show all properties regardless whether
+ they are set or not.</para></listitem>
</varlistentry>
<varlistentry>
- <term><option>--replace</option></term>
+ <term><option>--fail</option></term>
<listitem><para>If the requested
operation conflicts with an existing
- unfinished operation, replace the
- existing operation by the requested
- operation. If this is not specified
- the requested operation will
- fail.</para></listitem>
+ unfinished operation, fail the
+ command. If this is not specified the
+ requested operation will replace the
+ pending job if
+ necessary.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>--order</option></term>
+ <term><option>--require</option></term>
+
+ <listitem><para>When used in
+ conjunction with the
+ <command>dot</command> command (see
+ below), selects which dependencies are
+ shown in the dependency graph. If
+ <option>--order</option> is passed
+ only dependencies of type
+ <varname>After=</varname> or
+ <varname>Before=</varname> are
+ shown. If <option>--require</option>
+ is passed only dependencies of type
+ <varname>Requires=</varname>,
+ <varname>RequiresOverridable=</varname>,
+ <varname>Requisite=</varname>,
+ <varname>RequisiteOverridable=</varname>,
+ <varname>Wants=</varname> and
+ <varname>Conflicts=</varname> are
+ shown. If neither is passed, shows
+ dependencies of all these
+ types.</para></listitem>
</varlistentry>
<varlistentry>
</varlistentry>
<varlistentry>
- <term><option>--block</option></term>
+ <term><option>--no-block</option></term>
+
+ <listitem><para>Do not synchronously wait for
+ the requested operation to finish. If this is
+ not specified the job will be verified,
+ enqueued and <command>systemctl</command> will
+ wait until it is completed. By passing this
+ argument it is only verified and
+ enqueued.</para></listitem> </varlistentry>
+
+ <varlistentry>
+ <term><option>--quiet</option></term>
+ <term><option>-q</option></term>
- <listitem><para>Synchronously wait for
- the requested operation to
- finish.</para></listitem>
+ <listitem><para>Suppress output to
+ STDOUT for <command>snapshot</command>
+ and
+ <command>check</command>.</para></listitem>
</varlistentry>
<varlistentry>
<listitem><para>List known units.</para></listitem>
</varlistentry>
- <varlistentry>
- <term><command>list-jobs</command></term>
-
- <listitem><para>List jobs that are in progress.</para></listitem>
- </varlistentry>
- <varlistentry>
- <term><command>clear-jobs</command></term>
-
- <listitem><para>Cancel all jobs that are in progress.</para></listitem>
- </varlistentry>
- <varlistentry>
- <term><command>load [NAME...]</command></term>
-
- <listitem><para>Load one or more units
- specified on the command line. This
- will simply load their configuration
- from disk, but not start them. To
- start them you need to use the
- <command>start</command> command which
- will implicitly load a unit that has
- not been loaded yet. Note that systemd
- garbage collects loaded units that are
- not active or referenced by an active
- unit. This means that units loaded
- this way will usually not stay loaded
- for long. Also note that this command
- cannot be used to reload unit
- configuration. Use the
- <command>daemon-reload</command>
- command for that. All in all, this
- command is of little use except for
- debugging.</para>
- <para>This command should not be
- confused with the
- <command>daemon-reload</command> or
- <command>reload</command>
- commands.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><command>cancel [JOB...]</command></term>
-
- <listitem><para>Cancel one or more
- jobs specified on the command line by
- their numeric job
- IDs.</para></listitem>
- </varlistentry>
<varlistentry>
<term><command>start [NAME...]</command></term>
specified on the command
line.</para></listitem>
</varlistentry>
- <varlistentry>
- <term><command>restart [NAME...]</command></term>
-
- <listitem><para>Restart one or more
- units specified on the command
- line.</para></listitem>
- </varlistentry>
<varlistentry>
<term><command>reload [NAME...]</command></term>
commands.</para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><command>restart [NAME...]</command></term>
+
+ <listitem><para>Restart one or more
+ units specified on the command
+ line. If the units are not running yet
+ they will be
+ started.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><command>try-restart [NAME...]</command></term>
+
+ <listitem><para>Restart one or more
+ units specified on the command
+ line. If the units are not running yet
+ the operation will
+ fail.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><command>reload-or-restart [NAME...]</command></term>
+ <term><command>reload-or-try-restart [NAME...]</command></term>
+
+ <listitem><para>Reload one or more
+ units if they support it. If not
+ restart them
+ instead.</para></listitem>
+ </varlistentry>
<varlistentry>
<term><command>isolate [NAME]</command></term>
dependencies and stop all
others.</para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><command>check [NAME...]</command></term>
+
+ <listitem><para>Check whether any of
+ the specified units is active
+ (i.e. running). Returns 0 if at least
+ one is active, non-zero
+ otherwise. Unless
+ <option>--quiet</option> is specified
+ this will also print the current unit
+ state to STDOUT.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><command>status [NAME...]</command></term>
+
+ <listitem><para>Show short status
+ information about one or more
+ units. This shows terse runtime
+ information about
+ units.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><command>show [NAME...|JOB...]</command></term>
+
+ <listitem><para>Show properties of
+ one or more units, jobs or the manager
+ itself. If no argument is specified
+ properties of the manager will be
+ shown. If a unit name is specified
+ properties of the unit is shown,
+ and if a job id is specified
+ properties of the job is
+ shown.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><command>load [NAME...]</command></term>
+
+ <listitem><para>Load one or more units
+ specified on the command line. This
+ will simply load their configuration
+ from disk, but not start them. To
+ start them you need to use the
+ <command>start</command> command which
+ will implicitly load a unit that has
+ not been loaded yet. Note that systemd
+ garbage collects loaded units that are
+ not active or referenced by an active
+ unit. This means that units loaded
+ this way will usually not stay loaded
+ for long. Also note that this command
+ cannot be used to reload unit
+ configuration. Use the
+ <command>daemon-reload</command>
+ command for that. All in all, this
+ command is of little use except for
+ debugging.</para>
+ <para>This command should not be
+ confused with the
+ <command>daemon-reload</command> or
+ <command>reload</command>
+ commands.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><command>list-jobs</command></term>
+
+ <listitem><para>List jobs that are in progress.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><command>cancel [JOB...]</command></term>
+
+ <listitem><para>Cancel one or more
+ jobs specified on the command line by
+ their numeric job
+ IDs.</para></listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><command>clear-jobs</command></term>
+
+ <listitem><para>Cancel all jobs that are in progress.</para></listitem>
+ </varlistentry>
<varlistentry>
<term><command>monitor</command></term>
be parsed by
applications.</para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><command>dot</command></term>
+
+ <listitem><para>Generate textual
+ dependency graph description in dot
+ format for further processing with the
+ GraphViz
+ <citerefentry><refentrytitle>dot</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ tool. Use a command line like
+ <command>systemctl dot | dot -Tsvg >
+ systemd.svg</command> to generate a
+ graphical dependency tree. Unless
+ <option>--order</option> or
+ <option>--require</option> is passed
+ the generated graph will show both
+ ordering and requirement
+ dependencies.</para></listitem>
+ </varlistentry>
<varlistentry>
<term><command>snapshot [NAME]</command></term>
snapshot will be named after it. If
none is specified an automatic
snapshot name is generated. In either
- case, the snapshot name used is printed
- to STDOUT.</para>
+ case, the snapshot name used is
+ printed to STDOUT, unless
+ <option>--quiet</option> is
+ specified.</para>
<para>A snapshot refers to a saved
state of the systemd manager. It is
state. Snapshots are dynamic and lost
on reboot.</para>
</varlistentry>
+ <varlistentry>
+ <term><command>delete [NAME...]</command></term>
+
+ <listitem><para>Remove a snapshot
+ previously created with
+ <command>snapshot</command>.</para></listitem>
+ </varlistentry>
<varlistentry>
<term><command>daemon-reload</command></term>
unit files and recreate the entire
dependency tree. While the daemon is
reloaded, all sockets systemd listens
- on on behalf of user configuration, will
+ on on behalf of user configuration will
stay accessible.</para> <para>This
command should not be confused with
the <command>load</command> or
<listitem><para>Enter emergency
mode. This is mostly equivalent to
<command>isolate
- emergency.service</command> but also
+ emergency.target</command> but also
prints a wall message to all
users.</para></listitem>
</varlistentry>
~ianmdlvl / elogind.git / blobdiff