template <literal>.d/</literal> subdirectory and reads
its <literal>.conf</literal> files.</para>
+ <!-- Note that we do not document .include here, as we
+ consider it mostly obsolete, and want people to
+ use .d/ drop-ins instead. -->
+
<para>Note that while systemd offers a flexible
dependency system between units it is recommended to
use this functionality only sparingly and instead rely
</tbody>
</tgroup>
</table>
+
+ <para>Please note that specifiers
+ <literal>%U</literal>, <literal>%h</literal>,
+ <literal>%s</literal> are mostly useless when systemd
+ is running in system mode. PID 1 cannot query the
+ user account database for information, so the
+ specifiers only work as shortcuts for things which are
+ already specified in a different way in the unit
+ file. They are fully functional when systemd is
+ running in <option>--user</option> mode.</para>
</refsect1>
<refsect1>