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| author | Lennart Poettering <lennart@poettering.net> | 2010-07-08 04:19:54 +0200 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2010-07-08 04:19:54 +0200 |
| commit | 420a0166a2f02939de22569b37168395772a5be9 (patch) | |
| tree | 7595b4a400ed78b923f4fab8e79525b055f7d7d8 /man/systemd.service.xml | |
| parent | fab56fc541cebdbbc4cc273c3f0807eb7807b9fd (diff) | |
man: document variable substitution
Diffstat (limited to 'man/systemd.service.xml')
| -rw-r--r-- | man/systemd.service.xml | 44 |
1 files changed, 35 insertions, 9 deletions
diff --git a/man/systemd.service.xml b/man/systemd.service.xml index 7eaf9cbce..709a448f4 100644 --- a/man/systemd.service.xml +++ b/man/systemd.service.xml @@ -257,11 +257,19 @@ <literal>argv[0]</literal> to the executed process, followed by the further arguments specified. Unless - <varname>Type=forking</varname> is set, - the process started via this command - line will be considered the main - process of the - daemon.</para></listitem> + <varname>Type=forking</varname> is + set, the process started via this + command line will be considered the + main process of the daemon. The + command line accepts % specifiers as + described in + <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>. On + top of that basic environment variable + substitution is supported, where + <literal>$(FOO)</literal> is replaced + by the value of the environment + variable of the same + name.</para></listitem> </varlistentry> <varlistentry> @@ -285,7 +293,9 @@ suitable for XDG <filename>.desktop</filename> files. Use of these settings is - optional.</para></listitem> + optional. Specifier and environment + variable substitution is + supported.</para></listitem> </varlistentry> <varlistentry> @@ -297,7 +307,17 @@ scheme as pointed out for <varname>ExecStartPre=</varname> above. Use of this setting is - optional. </para></listitem> + optional. Specifier and environment + variable substitution is supported + here following the same scheme as for + <varname>ExecStart=</varname>. One + special environment variable is set: + if known <literal>$MAINPID</literal> is + set to the main process of the + daemon, and may be used for command + lines like the following: + <command>/bin/kill -HUP + $(MAINPID)</command>.</para></listitem> </varlistentry> <varlistentry> @@ -318,7 +338,11 @@ (see below). If this option is not specified the process is terminated right-away when service stop is - requested.</para></listitem> + requested. Specifier and environment + variable substitution is supported + (including + <literal>$(MAINPID)</literal>, see + above).</para></listitem> </varlistentry> <varlistentry> @@ -333,7 +357,9 @@ out for <varname>ExecStartPre</varname>. Use of these settings is - optional.</para></listitem> + optional. Specifier and environment + variable substitution is + supported.</para></listitem> </varlistentry> <varlistentry> |