<refsect1>
<title>Description</title>
- <para><command>systemd</command> uses <filename>/etc/tmpfiles.d/</filename> to describe the creation, cleaning and removal of temporary files and directories
-which usually reside in <filename>/var/run</filename> or <filename>/tmp</filename>).
-Each configuration file is named in the style of
-<filename>/etc/tmpfiles.d/<program>.conf</filename></para>
-
+ <para><command>systemd</command> uses
+ <filename>/etc/tmpfiles.d/</filename> to describe the
+ creation, cleaning and removal of temporary files and
+ directories which usually reside in
+ <filename>/var/run</filename> or
+ <filename>/tmp</filename>). Each configuration file
+ is named in the style of
+ <filename>/etc/tmpfiles.d/<program>.conf</filename></para>
</refsect1>
<refsect1>
<title>Configuration Format</title>
- <para>The configuration format is one line per path containing
-action, mode, ownership and age fields:</para>
-
- <programlisting>type path mode uid gid age
-d /var/run/user 0755 root root 10d
-</programlisting>
-
- <refsect2>
- <title>type</title>
- <variablelist>
- <varlistentry>
- <term><varname>f</varname></term>
- <listitem><para>create a file</para></listitem>
- </varlistentry>
+ <para>The configuration format is one line per path
+ containing action, mode, ownership and age
+ fields:</para>
+
+ <programlisting>type path mode uid gid age
+d /var/run/user 0755 root root 10d</programlisting>
+
+ <refsect2>
+ <title>mode</title>
+
+ <para>The file access mode to use for this
+ file or directory. If ommited or when set to -
+ the default is used: 0755 for directories,
+ 0644 for files.</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
+ ommited or when set to - the default 0 is
+ used.</para>
+ </refsect2>
+
+ <refsect2>
+ <title>type</title>
+ <variablelist>
+ <varlistentry>
+ <term><varname>f</varname></term>
+ <listitem><para>create a file if it doesn't exist yet</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>F</varname></term>
+ <listitem><para>create or truncate a file</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>d</varname></term>
+ <listitem><para>create a directory if it doesn't exist yet</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>D</varname></term>
+ <listitem><para>create or empty a directory</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>x</varname></term>
+ <listitem><para>ignore a path</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>r</varname></term>
+ <listitem><para>remove a path</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>R</varname></term>
+ <listitem><para>recursively remove a path</para></listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect2>
+
+ <refsect2>
+ <title>age</title>
+ <para>The date field, when set, is used to
+ decide what files to delete when cleaning. If
+ a file or directory is older than the current
+ time minus the age field it is deleted. The
+ field format is a series of integers each
+ followed by one of the following
+ postfixes for the respective time units:</para>
+
+ <variablelist>
+ <varlistentry>
+ <term><varname>s</varname></term>
+ <term><varname>min</varname></term>
+ <term><varname>h</varname></term>
+ <term><varname>d</varname></term>
+ <term><varname>w</varname></term>
+ <term><varname>ms</varname></term>
+ <term><varname>m</varname></term>
+ <term><varname>us</varname></term></varlistentry>
+ </variablelist>
- <varlistentry>
- <term><varname>F</varname></term>
- <listitem><para>truncate a file</para></listitem>
- </varlistentry>
+ <para>If multiple integers and units are specified the time values are summed up.</para>
- <varlistentry>
- <term><varname>d</varname></term>
- <listitem><para>create a directory</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><varname>D</varname></term>
- <listitem><para>truncate a directory</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><varname>x</varname></term>
- <listitem><para>ignore the path</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><varname>r</varname></term>
- <listitem><para>remove the path</para></listitem>
- </varlistentry>
-
- <varlistentry>
- <term><varname>R</varname></term>
- <listitem><para>recursively remove the path</para></listitem>
- </varlistentry>
- </variablelist>
- </refsect2>
-
- <refsect2>
- <title>age</title>
- <para>The date field, when set, is used to decide what files to delete when cleaning. If a file or directory is older than the current time minus the age field it is deleted. The field format is an integer followed by one of the following postfixes:</para>
- <variablelist>
- <varlistentry><term><varname>sec</varname></term>
- <term><varname>s</varname></term>
- <term><varname>min</varname></term>
- <term><varname>hr</varname></term>
- <term><varname>h</varname></term>
- <term><varname>d</varname></term>
- <term><varname>w</varname></term>
- <term><varname>msec</varname></term>
- <term><varname>ms</varname></term>
- <term><varname>m</varname></term>
- <term><varname>usec</varname></term>
- <term><varname>us</varname></term></varlistentry>
- </variablelist>
- </refsect2>
+ <para>The age field only applies to lines starting with d, D and x. If ommited or set to - no automatic clean-up is done.</para>
+ </refsect2>
</refsect1>
<para><command>screen</command> needs two directories created at boot with specific modes and ownership.</para>
<programlisting>d /var/run/screens 1777 root root 10d
-d /var/run/uscreens 0755 root root 10d
-</programlisting>
+d /var/run/uscreens 0755 root root 10d12h</programlisting>
</example>
</refsect1>
projects / systemd / commitdiff