chiark / gitweb /
systemctl: allow globbing in commands which take multiple unit names
[elogind.git] / man / systemctl.xml
index 9cd6e88988cb65ad883a3da970d6bb48e93928c6..13a4444a0437e16aecd274d2282a65c1cd59ea0e 100644 (file)
@@ -174,10 +174,11 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
         <term><option>--full</option></term>
 
         <listitem>
-          <para>Do not ellipsize unit names, process tree entries, and
-          truncate unit descriptions in the output of
-          <command>list-units</command> and
-          <command>list-jobs</command>.</para>
+          <para>Do not ellipsize unit names, process tree entries,
+          journal output, or truncate unit descriptions in the output
+          of <command>status</command>, <command>list-units</command>,
+          <command>list-jobs</command>, and
+          <command>list-timers</command>.</para>
         </listitem>
       </varlistentry>
 
@@ -193,8 +194,8 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
         <term><option>--job-mode=</option></term>
 
         <listitem>
-        <para>When queuing a new job, control how to deal with already
-        queued jobs. Takes one of <literal>fail</literal>,
+        <para>When queuing a new job, this option controls how to deal with
+        already queued jobs. It takes one of <literal>fail</literal>,
         <literal>replace</literal>,
         <literal>replace-irreversibly</literal>,
         <literal>isolate</literal>,
@@ -237,7 +238,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
         applications.</para>
 
         <para><literal>ignore-requirements</literal> is similar to
-        <literal>ignore-dependencies</literal> but only causes the
+        <literal>ignore-dependencies</literal>, but only causes the
         requirement dependencies to be ignored, the ordering
         dependencies will still be honoured.</para>
         </listitem>
@@ -256,7 +257,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
           sleep state. Any user may take these locks and privileged
           users may override these locks. If any locks are taken,
           shutdown and sleep state requests will normally fail
-          (regardless if privileged or not) and a list of active locks
+          (regardless of whether privileged or not) and a list of active locks
           is printed. However, if <option>--ignore-inhibitors</option>
           is specified, the locks are ignored and not printed, and the
           operation attempted anyway, possibly requiring additional
@@ -294,7 +295,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
         <term><option>--no-legend</option></term>
 
         <listitem>
-          <para>Do not print a legend, i.e.  the column headers and
+          <para>Do not print the legend, i.e. the column headers and
           the footer with hints.</para>
         </listitem>
       </varlistentry>
@@ -443,7 +444,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
 
         <listitem>
           <para>When used with <command>enable</command>,
-          <command>disable</command>, <command>is-enabled</command>
+          <command>disable</command>,
           (and related commands), make changes only temporarily, so
           that they are lost on the next reboot. This will have the
           effect that changes are not made in subdirectories of
@@ -451,7 +452,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
           with identical immediate effects, however, since the latter
           is lost on reboot, the changes are lost too.</para>
 
-          <para>Similar, when used with
+          <para>Similarly, when used with
           <command>set-property</command>, make changes only
           temporarily, so that they are lost on the next
           reboot.</para>
@@ -542,7 +543,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
           <term><command>list-sockets <optional><replaceable>PATTERN</replaceable>...</optional></command></term>
 
           <listitem>
-            <para>List socket units ordered by the listening address.
+            <para>List socket units ordered by listening address.
             If one or more <replaceable>PATTERN</replaceable>s are
             specified, only socket units matching one of them are
             shown. Produces output similar to
@@ -579,15 +580,24 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
         </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
@@ -595,7 +605,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           </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
@@ -616,7 +626,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
 
         </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
@@ -625,7 +635,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           </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
@@ -636,7 +646,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           </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,
@@ -645,7 +655,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           </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,
@@ -675,7 +685,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           </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
@@ -686,18 +696,18 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           </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, non-zero otherwise. Unless <option>--quiet</option>
+            active, or 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>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.
@@ -708,7 +718,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           </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
@@ -719,12 +729,22 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
             belongs to.</para>
 
             <para>This function is intended to generate human-readable
-            output. If you are looking for computer-parsable output, use
-            <command>show</command> instead.</para>
+            output. If you are looking for computer-parsable output,
+            use <command>show</command> instead. By default this
+            function only shows 10 lines of output and ellipsizes
+            lines to fit in the terminal window. This can be changes
+            with <option>--lines</option> and <option>--full</option>,
+            see above. In addition, <command>journalctl
+            --unit=<replaceable>NAME</replaceable></command> or
+            <command>journalctl
+            --user-unit=<replaceable>NAME</replaceable></command> use
+            a similar filter for messages and might be more
+            convenient.
+            </para>
           </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
@@ -741,7 +761,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           </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
@@ -777,7 +797,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
         </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
@@ -787,7 +807,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
         </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
@@ -920,10 +940,64 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
 
           <listitem>
             <para>Checks whether any of the specified unit files are
-            enabled (as with <command>enable</command>). Returns an exit
-            code of 0 if at least one is enabled, non-zero
-            otherwise. Prints the current enable status. To suppress
-            this output, use <option>--quiet</option>.</para>
+            enabled (as with <command>enable</command>). Returns an
+            exit code of 0 if at least one is enabled, non-zero
+            otherwise. Prints the current enable status (see table).
+            To suppress this output, use <option>--quiet</option>.
+            </para>
+
+            <table>
+              <title>
+                <command>is-enabled</command> output
+              </title>
+
+              <tgroup cols='3'>
+                <thead>
+                  <row>
+                    <entry>Printed string</entry>
+                    <entry>Meaning</entry>
+                    <entry>Return value</entry>
+                  </row>
+                </thead>
+                <tbody>
+                  <row>
+                    <entry><literal>enabled</literal></entry>
+                    <entry morerows='1'>Enabled through a symlink in <filename>.wants</filename> directory (permanently or just in <filename>/run</filename>)</entry>
+                    <entry morerows='1'>0</entry>
+                  </row>
+                  <row>
+                    <entry><literal>enabled-runtime</literal></entry>
+                  </row>
+                  <row>
+                    <entry><literal>linked</literal></entry>
+                    <entry morerows='1'>Made available through a symlink to the unit file (permanently or just in <filename>/run</filename>)</entry>
+                    <entry morerows='1'>1</entry>
+                  </row>
+                  <row>
+                    <entry><literal>linked-runtime</literal></entry>
+                  </row>
+                  <row>
+                    <entry><literal>masked</literal></entry>
+                    <entry morerows='1'>Disabled entirely (permanently or just in <filename>/run</filename>)</entry>
+                    <entry morerows='1'>1</entry>
+                  </row>
+                  <row>
+                    <entry><literal>masked-runtime</literal></entry>
+                  </row>
+                  <row>
+                    <entry><literal>static</literal></entry>
+                    <entry>Unit is not enabled, but has no provisions for enabling in [Install] section</entry>
+                    <entry>0</entry>
+                  </row>
+                  <row>
+                    <entry><literal>disabled</literal></entry>
+                    <entry>Unit is not enabled</entry>
+                    <entry>1</entry>
+                  </row>
+                </tbody>
+              </tgroup>
+            </table>
+
           </listitem>
         </varlistentry>
 
@@ -1072,7 +1146,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
           </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
@@ -1318,23 +1392,55 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
     <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 ommands 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, and 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 don't 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>
@@ -1376,6 +1482,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service
       <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
       <citerefentry><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>