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man: document RUNTIME_DIRECTORY= or friends
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@ -814,15 +814,18 @@ CapabilityBoundingSet=~CAP_B CAP_C</programlisting>
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<listitem><para>These options take a whitespace-separated list of directory names. The specified directory
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names must be relative, and may not include <literal>..</literal>. If set, one or more
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directories by the specified names will be created (including their parents) below the locations
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defined in the following table, when the unit is started.</para>
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defined in the following table, when the unit is started. Also, the corresponding environment variable
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is defined with the full path of directories. If multiple directories are set, then int the environment variable
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the paths are concatenated with colon (<literal>:</literal>).</para>
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<table>
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<title>Automatic directory creation</title>
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<tgroup cols='3'>
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<title>Automatic directory creation and environment variables</title>
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<tgroup cols='4'>
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<thead>
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<row>
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<entry>Locations</entry>
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<entry>for system</entry>
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<entry>for users</entry>
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<entry>Environment variable</entry>
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</row>
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</thead>
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<tbody>
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@ -830,26 +833,31 @@ CapabilityBoundingSet=~CAP_B CAP_C</programlisting>
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<entry><varname>RuntimeDirectory=</varname></entry>
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<entry><filename>/run</filename></entry>
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<entry><varname>$XDG_RUNTIME_DIR</varname></entry>
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<entry><varname>$RUNTIME_DIRECTORY</varname></entry>
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</row>
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<row>
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<entry><varname>StateDirectory=</varname></entry>
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<entry><filename>/var/lib</filename></entry>
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<entry><varname>$XDG_CONFIG_HOME</varname></entry>
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<entry><varname>$STATE_DIRECTORY</varname></entry>
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</row>
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<row>
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<entry><varname>CacheDirectory=</varname></entry>
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<entry><filename>/var/cache</filename></entry>
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<entry><varname>$XDG_CACHE_HOME</varname></entry>
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<entry><varname>$CACHE_DIRECTORY</varname></entry>
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</row>
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<row>
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<entry><varname>LogsDirectory=</varname></entry>
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<entry><filename>/var/log</filename></entry>
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<entry><varname>$XDG_CONFIG_HOME</varname><filename>/log</filename></entry>
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<entry><varname>$LOGS_DIRECTORY</varname></entry>
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</row>
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<row>
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<entry><varname>ConfigurationDirectory=</varname></entry>
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<entry><filename>/etc</filename></entry>
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<entry><varname>$XDG_CONFIG_HOME</varname></entry>
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<entry><varname>$CONFIGURATION_DIRECTORY</varname></entry>
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</row>
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</tbody>
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</tgroup>
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@ -899,7 +907,13 @@ CapabilityBoundingSet=~CAP_B CAP_C</programlisting>
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<filename>/run/foo/bar</filename>, and <filename>/run/baz</filename>. The directories
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<filename>/run/foo/bar</filename> and <filename>/run/baz</filename> except <filename>/run/foo</filename> are
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owned by the user and group specified in <varname>User=</varname> and <varname>Group=</varname>, and removed
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when the service is stopped.</para></listitem>
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when the service is stopped.</para>
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<para>Example: if a system service unit has the following,
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<programlisting>RuntimeDirectory=foo/bar
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StateDirectory=aaa/bbb ccc</programlisting>
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then the environment variable <literal>RUNTIME_DIRECTORY</literal> is set with <literal>/run/foo/bar</literal>, and
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<literal>STATE_DIRECTORY</literal> is set with <literal>/var/lib/aaa/bbb:/var/lib/ccc</literal>.</para></listitem>
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</varlistentry>
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<varlistentry>
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