+ <title>Path</title>
+
+ <para>The file system path specification supports simple specifier
+ expansion. The following expansions are
+ understood:</para>
+
+ <table>
+ <title>Specifiers available</title>
+ <tgroup cols='3' align='left' colsep='1' rowsep='1'>
+ <colspec colname="spec" />
+ <colspec colname="mean" />
+ <colspec colname="detail" />
+ <thead>
+ <row>
+ <entry>Specifier</entry>
+ <entry>Meaning</entry>
+ <entry>Details</entry>
+ </row>
+ </thead>
+ <tbody>
+ <row>
+ <entry><literal>%m</literal></entry>
+ <entry>Machine ID</entry>
+ <entry>The machine ID of the running system, formatted as string. See <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry>
+ </row>
+ <row>
+ <entry><literal>%b</literal></entry>
+ <entry>Boot ID</entry>
+ <entry>The boot ID of the running system, formatted as string. See <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry> for more information.</entry>
+ </row>
+ <row>
+ <entry><literal>%H</literal></entry>
+ <entry>Host name</entry>
+ <entry>The hostname of the running system.</entry>
+ </row>
+ <row>
+ <entry><literal>%v</literal></entry>
+ <entry>Kernel release</entry>
+ <entry>Identical to <command>uname -r</command> output.</entry>
+ </row>
+ <row>
+ <entry><literal>%%</literal></entry>
+ <entry>Escaped %</entry>
+ <entry>Single percent sign.</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+ </refsect2>
+
+ <refsect2>
+ <title>Mode</title>
+
+ <para>The file access mode to use when
+ creating this file or directory. If omitted or
+ when set to -, the default is used: 0755 for
+ directories, 0644 for all other file objects.
+ For <varname>z</varname>, <varname>Z</varname>
+ lines, if omitted or when set to
+ <literal>-</literal>, the file access mode
+ will not be modified. This parameter is
+ ignored for <varname>x</varname>,
+ <varname>r</varname>, <varname>R</varname>,
+ <varname>L</varname> lines.</para>
+ </refsect2>
+
+ <refsect2>
+ <title>UID, GID</title>
+
+ <para>The user and group to use for this file
+ or directory. This may either be a numeric
+ user/group ID or a user or group name. If
+ omitted or when set to <literal>-</literal>,
+ the default 0 (root) is used. For
+ <varname>z</varname>, <varname>Z</varname>
+ lines, when omitted or when set to -, the file
+ ownership will not be modified. These
+ parameters are ignored for
+ <varname>x</varname>, <varname>r</varname>,
+ <varname>R</varname>, <varname>L</varname>
+ lines.</para>
+ </refsect2>
+
+ <refsect2>
+ <title>Age</title>