<refsect1>
<title>Description</title>
- <para><command>systemd-tmpfiles</command> uses the
- configuration files from the above directories to describe the
- creation, cleaning and removal of volatile and
- temporary files and directories which usually reside
- in directories such as <filename>/run</filename>
- or <filename>/tmp</filename>.</para>
+ <para><command>systemd-tmpfiles</command> uses the
+ configuration files from the above directories to describe the
+ creation, cleaning and removal of volatile and
+ temporary files and directories which usually reside
+ in directories such as <filename>/run</filename>
+ or <filename>/tmp</filename>.</para>
</refsect1>
<refsect1>
- <title>Configuration Format</title>
+ <title>Configuration Format</title>
<para>Each configuration file shall be named in the
style of <filename><program>.conf</filename>.
alphabetical order, regardless in which of the
directories they reside, to guarantee that a specific
configuration file takes precedence over another file
- with an alphabetically later name</para>
+ with an alphabetically later name.</para>
<para>If the administrator wants to disable a
configuration file supplied by the vendor the
<filename>/etc/tmpfiles.d/</filename> bearing the
same file name.</para>
- <para>The configuration format is one line per path
- containing action, path, mode, ownership, age and argument
- fields:</para>
+ <para>The configuration format is one line per path
+ containing action, path, mode, ownership, age and argument
+ fields:</para>
<programlisting>Type Path Mode UID GID Age Argument
d /run/user 0755 root root 10d -
<varlistentry>
<term><varname>w</varname></term>
- <listitem><para>Write the argument parameter to a file, if it exists.</para></listitem>
+ <listitem><para>Write the argument parameter to a file, if the file exists.
+ Lines of this type accept shell-style globs in place of normal path
+ names. The argument parameter will be written without a trailing
+ newline. C-style backslash escapes are interpreted.</para></listitem>
</varlistentry>
<varlistentry>
effect of r or R lines. Lines
of this type accept
shell-style globs in place of
- of normal path
+ normal path
names.</para></listitem>
</varlistentry>
</variablelist>
<para>If multiple integers and units are specified the time
- values are summed up.</para>
+ values are summed up. If an integer is given without a unit,
+ s is assumed.
+ </para>
+
+ <para>When the age is set to zero, the files are cleaned
+ unconditionally.</para>
<para>The age field only applies to lines starting with
d, D and x. If omitted or set to - no automatic clean-up
is done.</para>
+
+ <para>If the age field starts with a tilde
+ character (~) the clean-up is only applied to
+ files and directories one level inside the
+ directory specified, but not the files and
+ directories immediately inside it.</para>
</refsect2>
<refsect2>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>systemd-tmpfiles</refentrytitle><manvolnum>8</manvolnum></citerefentry>
+ <citerefentry><refentrytitle>systemd-tmpfiles</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd-delta</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>