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| Copyright 2013 Zbigniew Jędrzejewski-Szmek |
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| |
| <refentry id="systemd-run"> |
| |
| <refentryinfo> |
| <title>systemd-run</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>systemd-run</refentrytitle> |
| <manvolnum>1</manvolnum> |
| </refmeta> |
| |
| <refnamediv> |
| <refname>systemd-run</refname> |
| <refpurpose>Run programs in transient scope or service units</refpurpose> |
| </refnamediv> |
| |
| <refsynopsisdiv> |
| <cmdsynopsis> |
| <command>systemd-run</command> |
| <arg choice="opt" rep="repeat">OPTIONS</arg> |
| <arg choice="plain"><replaceable>COMMAND</replaceable> |
| <arg choice="opt" rep="repeat">ARGS</arg> |
| </arg> |
| </cmdsynopsis> |
| </refsynopsisdiv> |
| |
| <refsect1> |
| <title>Description</title> |
| |
| <para><command>systemd-run</command> may be used create and start |
| a transient <filename>.service</filename> or a |
| <filename>.scope</filename> unit and run the specified |
| <replaceable>COMMAND</replaceable> in it.</para> |
| |
| <para>If a command is run as transient service unit, it will be |
| started and managed by the service manager like any other service, |
| and thus show up in the output of <command>systemctl |
| list-units</command> like any other unit. It will run in a clean |
| and detached execution environment. <command>systemd-run</command> |
| will start the service asynchronously in the background and |
| immediately return.</para> |
| |
| <para>If a command is run as transient scope unit, it will be |
| started directly by <command>systemd-run</command> and thus |
| inherit the execution environment of the caller. It is however |
| managed by the service manager similar to normal services, and |
| will also show up in the output of <command>systemctl |
| list-units</command>. Execution in this case is synchronous, and |
| execution will return only when the command finishes.</para> |
| </refsect1> |
| |
| <refsect1> |
| <title>Options</title> |
| |
| <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>--user</option></term> |
| |
| <listitem> |
| <para>Talk to the service manager of the calling user, |
| rather than the service manager of the system.</para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term><option>--scope</option></term> |
| |
| <listitem> |
| <para>Create a transient <filename>.scope</filename> unit instead of |
| the default transient <filename>.service</filename> unit. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term><option>--unit=</option></term> |
| |
| <listitem><para>Use this unit name instead of an automatically |
| generated one.</para></listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term><option>--description=</option></term> |
| |
| <listitem><para>Provide description for the unit. If not |
| specified, the command itself will be used as a description. |
| See <varname>Description=</varname> in |
| <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>. |
| </para></listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term><option>--slice=</option></term> |
| |
| <listitem><para>Make the new <filename>.service</filename> or |
| <filename>.scope</filename> unit part of the specified slice, |
| instead of the <filename>system.slice</filename>.</para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term><option>--remain-after-exit</option></term> |
| |
| <listitem><para>After the service's process has terminated, keep |
| the service around until it is explicitly stopped. This is |
| useful to collect runtime information about the service after |
| it finished running. Also see |
| <varname>RemainAfterExit=</varname> in |
| <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term><option>--send-sighup</option></term> |
| |
| <listitem><para>When terminating the scope unit, send a SIGHUP |
| immediately after SIGTERM. This is useful to indicate to |
| shells and shell-like processes that the connection has been |
| severed. Also see <varname>SendSIGHUP=</varname> in |
| <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>. |
| </para> |
| </listitem> |
| </varlistentry> |
| </variablelist> |
| |
| <para>All command-line arguments after the first non-option |
| argument become part of the commandline of the launched |
| process. If a command is run as service unit, its first argument |
| needs to be an absolute binary path.</para> |
| </refsect1> |
| |
| <refsect1> |
| <title>Exit status</title> |
| |
| <para>On success, 0 is returned, a non-zero failure |
| code otherwise.</para> |
| </refsect1> |
| |
| <refsect1> |
| <title>Example</title> |
| |
| <para>The following command will log the environment variables |
| provided by systemd to services:</para> |
| |
| <programlisting># systemd-run env |
| Running as unit run-19945.service. |
| # journalctl -u run-19945.service |
| Sep 08 07:37:21 bupkis systemd[1]: Starting /usr/bin/env... |
| Sep 08 07:37:21 bupkis systemd[1]: Started /usr/bin/env. |
| Sep 08 07:37:21 bupkis env[19948]: PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin |
| Sep 08 07:37:21 bupkis env[19948]: LANG=en_US.UTF-8 |
| Sep 08 07:37:21 bupkis env[19948]: BOOT_IMAGE=/vmlinuz-3.11.0-0.rc5.git6.2.fc20.x86_64 |
| </programlisting> |
| </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>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>, |
| <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>, |
| <citerefentry><refentrytitle>systemd.scope</refentrytitle><manvolnum>5</manvolnum></citerefentry>, |
| <citerefentry><refentrytitle>systemd.slice</refentrytitle><manvolnum>5</manvolnum></citerefentry>. |
| </para> |
| </refsect1> |
| |
| </refentry> |