along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
-<refentry id="systemctl">
+<refentry id="systemctl"
+ xmlns:xi="http://www.w3.org/2001/XInclude">
<refentryinfo>
<title>systemctl</title>
<refsect1>
<title>Description</title>
- <para><command>systemctl</command> may be used to
- introspect and control the state of the
+ <para><command>systemctl</command> may be used to introspect and
+ control the state of the <literal>systemd</literal> system and
+ service manager. Please refer to
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
- system and service manager.</para>
+ for an introduction into the basic concepts and functionality this
+ tool manages.</para>
</refsect1>
<refsect1>
<para>The following options are understood:</para>
<variablelist>
- <varlistentry>
- <term><option>-h</option></term>
- <term><option>--help</option></term>
-
- <listitem><para>Prints a short help
- text and exits.</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--version</option></term>
-
- <listitem>
- <para>Prints a short version string and exits.</para>
- </listitem>
- </varlistentry>
-
<varlistentry>
<term><option>-t</option></term>
<term><option>--type=</option></term>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><option>-r</option></term>
+ <term><option>--recursive</option></term>
+
+ <listitem>
+ <para>When listing units, also show units of local
+ containers. Units of local containers will be prefixed with
+ the container name, separated by a single colon character
+ (<literal>:</literal>).</para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><option>--reverse</option></term>
<varlistentry>
<term><option>--after</option></term>
+
+ <listitem>
+ <para>With <command>list-dependencies</command>, show the
+ units that are ordered before the specified unit. In other
+ words, list the units that are in the <varname>After=</varname>
+ directive of the specified unit, have the specified unit in
+ their <varname>Before=</varname> directive, or are otherwise
+ implicit dependencies of the specified unit.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
<term><option>--before</option></term>
<listitem>
- <para>Show which units are started after or before
- with <command>list-dependencies</command>, respectively.
- </para>
+ <para>With <command>list-dependencies</command>, show the
+ units that are ordered after the specified unit. In other
+ words, list the units that are in the <varname>Before=</varname>
+ directive of the specified unit, have the specified unit in
+ their <varname>After=</varname> directive, or otherwise depend
+ on the specified unit.</para>
</listitem>
</varlistentry>
<para>If <literal>replace-irreversibly</literal> is specified,
operate like <literal>replace</literal>, but also mark the new
jobs as irreversible. This prevents future conflicting
- transactions from replacing these jobs. The jobs can still be
- cancelled using the <command>cancel</command> command.</para>
+ transactions from replacing these jobs (or even being enqueued
+ while the irreversible jobs are still pending). Irreversible
+ jobs can still be cancelled using the <command>cancel</command>
+ command.</para>
<para><literal>isolate</literal> is only valid for start
operations and causes all other units to be stopped when the
<command>snapshot</command>,
<command>is-active</command>,
<command>is-failed</command>,
+ <command>is-enabled</command>,
+ <command>is-system-running</command>,
<command>enable</command> and
<command>disable</command>.</para>
</listitem>
</listitem>
</varlistentry>
- <varlistentry>
- <term><option>--no-pager</option></term>
-
- <listitem>
- <para>Do not pipe output into a pager.</para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--system</option></term>
-
- <listitem>
- <para>Talk to the systemd system manager. (Default)</para>
- </listitem>
- </varlistentry>
-
- <varlistentry>
- <term><option>--user</option></term>
-
- <listitem>
- <para>Talk to the systemd manager of the calling
- user.</para>
- </listitem>
- </varlistentry>
+ <xi:include href="user-system-options.xml" xpointer="user" />
+ <xi:include href="user-system-options.xml" xpointer="system" />
<varlistentry>
<term><option>--no-wall</option></term>
<listitem>
<para>When used with <command>kill</command>, choose which
- processes to kill. Must be one of <option>main</option>,
- <option>control</option> or <option>all</option> to select
- whether to kill only the main process of the unit, the
- control process or all processes of the unit. If omitted,
- defaults to <option>all</option>.</para>
+ processes to send a signal to. Must be one of
+ <option>main</option>, <option>control</option> or
+ <option>all</option> to select whether to kill only the main
+ process, the control process or all processes of the
+ unit. The main process of the unit is the one that defines
+ the life-time of it. A control process of a unit is one that
+ is invoked by the manager to induce state changes of it. For
+ example, all processes started due to the
+ <varname>ExecStartPre=</varname>,
+ <varname>ExecStop=</varname> or
+ <varname>ExecReload=</varname> settings of service units are
+ control processes. Note that there is only one control
+ process per unit at a time, as only one state change is
+ executed at a time. For services of type
+ <varname>Type=forking</varname>, the initial process started
+ by the manager for <varname>ExecStart=</varname> is a
+ control process, while the process ultimately forked off by
+ that one is then considered the main process of the unit (if
+ it can be determined). This is different for service units
+ of other types, where the process forked off by the manager
+ for <varname>ExecStart=</varname> is always the main process
+ itself. A service unit consists of zero or one main process,
+ zero or one control process plus any number of additional
+ processes. Not all unit types manage processes of these
+ types however. For example, for mount units, control processes
+ are defined (which are the invocations of
+ <filename>/usr/bin/mount</filename> and
+ <filename>/usr/bin/umount</filename>), but no main process
+ is defined. If omitted, defaults to
+ <option>all</option>.</para>
</listitem>
</varlistentry>
safe option to request an immediate reboot. If
<option>--force</option> is specified twice for these
operations, they will be executed immediately without
- terminating any processes or umounting any file
+ terminating any processes or unmounting any file
systems. Warning: specifying <option>--force</option> twice
with any of these operations might result in data
loss.</para>
</varlistentry>
<varlistentry>
- <term><option>-H</option></term>
- <term><option>--host</option></term>
+ <term><option>--preset-mode=</option></term>
<listitem>
- <para>Execute the operation remotely. Specify a hostname, or
- username and hostname separated by <literal>@</literal>, to
- connect to. This will use SSH to talk to the remote systemd
- instance.</para>
+ <para>Takes one of <literal>full</literal> (the default),
+ <literal>enable-only</literal>,
+ <literal>disable-only</literal>. When used with the
+ <command>preset</command> or <command>preset-all</command>
+ commands, controls whether units shall be disabled and
+ enabled according to the preset rules, or only enabled, or
+ only disabled.</para>
</listitem>
</varlistentry>
- <varlistentry>
- <term><option>-M</option></term>
- <term><option>--machine=</option></term>
-
- <listitem><para>Execute the operation on a local
- container. Specify a container name to connect
- to.</para></listitem>
- </varlistentry>
-
<varlistentry>
<term><option>-n</option></term>
<term><option>--lines=</option></term>
</listitem>
</varlistentry>
+ <xi:include href="user-system-options.xml" xpointer="host" />
+ <xi:include href="user-system-options.xml" xpointer="machine" />
+
+ <xi:include href="standard-options.xml" xpointer="help" />
+ <xi:include href="standard-options.xml" xpointer="version" />
+ <xi:include href="standard-options.xml" xpointer="no-pager" />
</variablelist>
</refsect1>
[::]:22 sshd.socket sshd.service
kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
-5 sockets listed.
- </programlisting>
+5 sockets listed.</programlisting>
Note: because the addresses might contains spaces, this output
is not suitable for programmatic consumption.
</para>
</varlistentry>
<varlistentry>
- <term><command>start <replaceable>NAME</replaceable>...</command></term>
+ <term><command>start <replaceable>PATTERN</replaceable>...</command></term>
<listitem>
<para>Start (activate) one or more units specified on the
command line.</para>
+
+ <para>Note that glob patterns operate on a list of currently
+ loaded units. Units which are not active and are not in a
+ failed state usually are not loaded, and would not be
+ matched by any pattern. In addition, in case of
+ instantiated units, systemd is often unaware of the
+ instance name until the instance has been started. Therefore,
+ using glob patterns with <command>start</command>
+ has limited usefulness.</para>
</listitem>
</varlistentry>
<varlistentry>
- <term><command>stop <replaceable>NAME</replaceable>...</command></term>
+ <term><command>stop <replaceable>PATTERN</replaceable>...</command></term>
<listitem>
<para>Stop (deactivate) one or more units specified on the
</listitem>
</varlistentry>
<varlistentry>
- <term><command>reload <replaceable>NAME</replaceable>...</command></term>
+ <term><command>reload <replaceable>PATTERN</replaceable>...</command></term>
<listitem>
<para>Asks all units listed on the command line to reload
file.</para>
<para>This command should not be confused with the
- <command>daemon-reload</command> or <command>load</command>
- commands.</para>
+ <command>daemon-reload</command> command.</para>
</listitem>
</varlistentry>
<varlistentry>
- <term><command>restart <replaceable>NAME</replaceable>...</command></term>
+ <term><command>restart <replaceable>PATTERN</replaceable>...</command></term>
<listitem>
<para>Restart one or more units specified on the command
</listitem>
</varlistentry>
<varlistentry>
- <term><command>try-restart <replaceable>NAME</replaceable>...</command></term>
+ <term><command>try-restart <replaceable>PATTERN</replaceable>...</command></term>
<listitem>
<para>Restart one or more units specified on the command
</listitem>
</varlistentry>
<varlistentry>
- <term><command>reload-or-restart <replaceable>NAME</replaceable>...</command></term>
+ <term><command>reload-or-restart <replaceable>PATTERN</replaceable>...</command></term>
<listitem>
<para>Reload one or more units if they support it. If not,
</listitem>
</varlistentry>
<varlistentry>
- <term><command>reload-or-try-restart <replaceable>NAME</replaceable>...</command></term>
+ <term><command>reload-or-try-restart <replaceable>PATTERN</replaceable>...</command></term>
<listitem>
<para>Reload one or more units if they support it. If not,
</listitem>
</varlistentry>
<varlistentry>
- <term><command>kill <replaceable>NAME</replaceable>...</command></term>
+ <term><command>kill <replaceable>PATTERN</replaceable>...</command></term>
<listitem>
<para>Send a signal to one or more processes of the
unit. Use <option>--kill-who=</option> to select which
- process to kill. Use <option>--kill-mode=</option> to select
- the kill mode and <option>--signal=</option> to select the
- signal to send.</para>
+ process to kill. Use <option>--signal=</option> to select
+ the signal to send.</para>
</listitem>
</varlistentry>
<varlistentry>
- <term><command>is-active <replaceable>NAME</replaceable>...</command></term>
+ <term><command>is-active <replaceable>PATTERN</replaceable>...</command></term>
<listitem>
<para>Check whether any of the specified units are active
- (i.e. running). Returns an exit code 0 if at least one is
- active, or non-zero otherwise. Unless <option>--quiet</option>
- is specified, this will also print the current unit state to
- STDOUT.</para>
+ (i.e. running). Returns an exit code
+ <constant>0</constant> if at least one is active, or
+ non-zero otherwise. Unless <option>--quiet</option> is
+ specified, this will also print the current unit state to
+ standard output.</para>
</listitem>
</varlistentry>
<varlistentry>
- <term><command>is-failed <replaceable>NAME</replaceable>...</command></term>
+ <term><command>is-failed <replaceable>PATTERN</replaceable>...</command></term>
<listitem>
- <para>Check whether any of the specified units are in a "failed" state.
- Returns an exit code 0 if at least one has failed, non-zero
- otherwise. Unless <option>--quiet</option> is specified, this
- will also print the current unit state to
- STDOUT.</para>
+ <para>Check whether any of the specified units are in a
+ "failed" state. Returns an exit code
+ <constant>0</constant> if at least one has failed,
+ non-zero otherwise. Unless <option>--quiet</option> is
+ specified, this will also print the current unit state to
+ standard output.</para>
</listitem>
</varlistentry>
<varlistentry>
- <term><command>status</command> <optional><replaceable>NAME</replaceable>...|<replaceable>PID</replaceable>...]</optional></term>
+ <term><command>status</command> <optional><replaceable>PATTERN</replaceable>...|<replaceable>PID</replaceable>...]</optional></term>
<listitem>
<para>Show terse runtime status information about one or
more units, followed by most recent log data from the
- journal. If no units are specified, show all units (subject
- to limitations specified with <option>-t</option>). If a PID
- is passed, show information about the unit the process
- belongs to.</para>
+ journal. If no units are specified, show system status. If
+ combined with <option>--all</option>, also show the status of
+ all units (subject to limitations specified with
+ <option>-t</option>). If a PID is passed, show information
+ about the unit the process belongs to.</para>
<para>This function is intended to generate human-readable
output. If you are looking for computer-parsable output,
</listitem>
</varlistentry>
<varlistentry>
- <term><command>show</command> <optional><replaceable>NAME</replaceable>...|<replaceable>JOB</replaceable>...</optional></term>
+ <term><command>show</command> <optional><replaceable>PATTERN</replaceable>...|<replaceable>JOB</replaceable>...</optional></term>
<listitem>
<para>Show properties of one or more units, jobs, or the
</listitem>
</varlistentry>
<varlistentry>
- <term><command>cat <replaceable>NAME</replaceable>...</command></term>
+ <term><command>cat <replaceable>PATTERN</replaceable>...</command></term>
<listitem>
<para>Show backing files of one or more units. Prints the
</varlistentry>
<varlistentry>
- <term><command>help <replaceable>NAME</replaceable>...|<replaceable>PID</replaceable>...</command></term>
+ <term><command>help <replaceable>PATTERN</replaceable>...|<replaceable>PID</replaceable>...</command></term>
<listitem>
<para>Show manual pages for one or more units, if
</varlistentry>
<varlistentry>
- <term><command>reset-failed [<replaceable>NAME</replaceable>...]</command></term>
+ <term><command>reset-failed [<replaceable>PATTERN</replaceable>...]</command></term>
<listitem>
<para>Reset the <literal>failed</literal> state of the
<row>
<entry><literal>static</literal></entry>
<entry>Unit is not enabled, but has no provisions for enabling in [Install] section</entry>
- <entry>1</entry>
+ <entry>0</entry>
</row>
<row>
<entry><literal>disabled</literal></entry>
command line, to the defaults configured in the preset
policy files. This has the same effect as
<command>disable</command> or <command>enable</command>,
- depending how the unit is listed in the preset files. For
- more information on the preset policy format, see
+ depending how the unit is listed in the preset files.</para>
+
+ <para>Use <option>--preset-mode=</option> to control
+ whether units shall be enabled and disabled, or only
+ enabled, or only disabled.</para>
+
+ <para>For more information on the preset policy format,
+ see
<citerefentry><refentrytitle>systemd.preset</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
For more information on the concept of presets, please
- consult the
- <ulink url="http://freedesktop.org/wiki/Software/systemd/Preset">Preset</ulink>
+ consult the <ulink
+ url="http://freedesktop.org/wiki/Software/systemd/Preset">Preset</ulink>
document.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><command>preset-all</command></term>
+
+ <listitem>
+ <para>Resets all installed unit files to the defaults
+ configured in the preset policy file (see above).</para>
+
+ <para>Use <option>--preset-mode=</option> to control
+ whether units shall be enabled and disabled, or only
+ enabled, or only disabled.</para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><command>mask <replaceable>NAME</replaceable>...</command></term>
activation of the unit, including manual activation. Use
this option with care. This honors the
<option>--runtime</option> option to only mask temporarily
- until the next reoobt of the system.</para>
+ until the next reboot of the system.</para>
</listitem>
</varlistentry>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><command>add-wants <replaceable>TARGET</replaceable>
+ <replaceable>NAME</replaceable>...</command></term>
+ <term><command>add-requires <replaceable>TARGET</replaceable>
+ <replaceable>NAME</replaceable>...</command></term>
+
+ <listitem>
+ <para>Adds <literal>Wants=</literal> resp. <literal>Requires=</literal>
+ dependency to the specified <replaceable>TARGET</replaceable> for
+ one or more units. </para>
+
+ <para>This command honors <option>--system</option>,
+ <option>--user</option>, <option>--runtime</option> and
+ <option>--global</option> in a similar way as
+ <command>enable</command>.</para>
+
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><command>link <replaceable>FILENAME</replaceable>...</command></term>
</variablelist>
</refsect2>
+ <refsect2>
+ <title>Machine Commands</title>
+
+ <variablelist>
+ <varlistentry>
+ <term><command>list-machines <optional><replaceable>PATTERN</replaceable>...</optional></command></term>
+
+ <listitem>
+ <para>List the host and all running local containers with
+ their state. If one or more
+ <replaceable>PATTERN</replaceable>s are specified, only
+ containers matching one of them are shown.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect2>
+
<refsect2>
<title>Job Commands</title>
<listitem>
<para>Create a snapshot. If a snapshot name is specified,
the new 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, unless
- <option>--quiet</option> is specified.</para>
+ specified, an automatic snapshot name is generated. In
+ either case, the snapshot name used is printed to standard
+ output, unless <option>--quiet</option> is specified.
+ </para>
<para>A snapshot refers to a saved state of the systemd
manager. It is implemented itself as a unit that is
</listitem>
</varlistentry>
<varlistentry>
- <term><command>delete <replaceable>NAME</replaceable>...</command></term>
+ <term><command>delete <replaceable>PATTERN</replaceable>...</command></term>
<listitem>
<para>Remove a snapshot previously created with
specified value.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><command>import-environment <replaceable>VARIABLE</replaceable>...</command></term>
+
+ <listitem>
+ <para>Import all, one or more environment variables set on
+ the client into the systemd manager environment block. If
+ no arguments are passed, the entire environment block is
+ imported. Otherwise, a list of one or more environment
+ variable names should be passed, whose client-side values
+ are then imported into the manager's environment
+ block.</para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect2>
<para>Reload systemd manager configuration. This will reload
all unit files and recreate the entire dependency
tree. While the daemon is being reloaded, all sockets systemd
- listens on on behalf of user configuration will stay
+ listens on behalf of user configuration will stay
accessible.</para> <para>This command should not be confused
- with the <command>load</command> or
- <command>reload</command> commands.</para>
+ with the <command>reload</command> command.</para>
</listitem>
</varlistentry>
<varlistentry>
<title>System Commands</title>
<variablelist>
+ <varlistentry>
+ <term><command>is-system-running</command></term>
+
+ <listitem>
+ <para>Checks whether the system is running. This returns
+ success when the system is fully up and running, meaning
+ not in startup, shutdown or maintenance mode. Failure is
+ returned otherwise. In addition, the current state is
+ printed in a short string to standard output. Use
+ <option>--quiet</option> to suppress output of this state
+ string.</para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term><command>default</command></term>
<command>isolate default.target</command>.</para>
</listitem>
</varlistentry>
+
<varlistentry>
<term><command>rescue</command></term>
<refsect2>
<title>Parameter Syntax</title>
- <para>For unit commands, the specified
- <replaceable>NAME</replaceable> should be the full name of the
- unit, or an abbreviated name which is automatically extended with
- the <literal>.service</literal> suffix.
- <programlisting># systemctl start foo.service</programlisting> is equivalent to:
- <programlisting># systemctl start foo</programlisting>
- Note that (absolute) paths to device nodes are automatically converted to device unit names, and other (absolute) paths to mount unit names.
- <programlisting># systemctl status /dev/sda
-# systemctl status /home</programlisting> is equivalent to:
- <programlisting># systemctl status dev-sda.device
-# systemctl status home.mount</programlisting></para>
-
- <para>For unit file commands, the
- specified <replaceable>NAME</replaceable> should be the full name
- of the unit file, or the absolute path to the unit file.
- <programlisting># systemctl link /path/to/foo.service</programlisting>
- </para>
+ <para>Unit commands listed above take either a single unit name
+ (designated as <replaceable>NAME</replaceable>), or multiple
+ unit specifications (designated as
+ <replaceable>PATTERN</replaceable>...). In the first case, the
+ unit name with or without a suffix must be given. If the suffix
+ is not specified, systemctl will append a suitable suffix,
+ <literal>.service</literal> by default, and a type-specific
+ suffix in case of commands which operate only on specific unit
+ types. For example,
+ <programlisting># systemctl start sshd</programlisting> and
+ <programlisting># systemctl start sshd.service</programlisting>
+ are equivalent, as are
+ <programlisting># systemctl isolate snapshot-11</programlisting>
+ and
+ <programlisting># systemctl isolate snapshot-11.snapshot</programlisting>
+ Note that (absolute) paths to device nodes are automatically
+ converted to device unit names, and other (absolute) paths to
+ mount unit names.
+ <programlisting># systemctl status /dev/sda
+# systemctl status /home</programlisting>
+ are equivalent to:
+ <programlisting># systemctl status dev-sda.device
+# systemctl status home.mount</programlisting>
+ In the second case, shell-style globs will be matched against
+ currently loaded units; literal unit names, with or without
+ a suffix, will be treated as in the first case. This means that
+ literal unit names always refer to exactly one unit, but globs
+ may match zero units and this is not considered an error.</para>
+
+ <para>Glob patterns use
+ <citerefentry><refentrytitle>fnmatch</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ so normal shell-style globbing rules are used, and
+ <literal>*</literal>, <literal>?</literal>,
+ <literal>[]</literal> may be used. See
+ <citerefentry><refentrytitle>glob</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ for more details. The patterns are matched against the names of
+ currently loaded units, and patterns which do not match anything
+ are silently skipped. For example:
+ <programlisting># systemctl stop sshd@*.service</programlisting>
+ will stop all <filename>sshd@.service</filename> instances.
+ </para>
+
+ <para>For unit file commands, the specified
+ <replaceable>NAME</replaceable> should be the full name of the
+ unit file, or the absolute path to the unit file:
+ <programlisting># systemctl enable foo.service</programlisting>
+ or
+ <programlisting># systemctl link /path/to/foo.service</programlisting>
+ </para>
</refsect2>
</refsect1>
code otherwise.</para>
</refsect1>
- <refsect1>
- <title>Environment</title>
-
- <variablelist class='environment-variables'>
- <varlistentry>
- <term><varname>$SYSTEMD_PAGER</varname></term>
-
- <listitem>
- <para>Pager to use when <option>--no-pager</option> is not
- given; overrides <varname>$PAGER</varname>. Setting this to
- an empty string or the value <literal>cat</literal> is
- equivalent to passing
- <option>--no-pager</option>.</para>
- </listitem>
- </varlistentry>
- </variablelist>
- </refsect1>
+ <xi:include href="less-variables.xml" />
<refsect1>
<title>See Also</title>
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.resource-management</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.preset</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ <citerefentry><refentrytitle>glob</refentrytitle><manvolnum>7</manvolnum></citerefentry>
</para>
</refsect1>
~ianmdlvl / elogind.git / blobdiff