<?xml version="1.0"?> <!--*-nxml-*--> <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> <!-- This file is part of systemd. Copyright 2010 Brandon Philips systemd is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. --> <refentry id="tmpfiles.d"> <refentryinfo> <title>tmpfiles.d</title> <productname>systemd</productname> <authorgroup> <author> <contrib>Documentation</contrib> <firstname>Brandon</firstname> <surname>Philips</surname> <email>brandon@ifup.org</email> </author> </authorgroup> </refentryinfo> <refmeta> <refentrytitle>tmpfiles.d</refentrytitle> <manvolnum>5</manvolnum> </refmeta> <refnamediv> <refname>tmpfiles.d</refname> <refpurpose>Configuration for creation, deletion and cleaning of temporary and volatile files</refpurpose> </refnamediv> <refsynopsisdiv> <para><filename>/etc/tmpfiles.d/*.conf</filename></para> </refsynopsisdiv> <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> </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 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>Mode</title> <para>The file access mode to use for this file or directory. If omitted 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 omitted or when set to - the default 0 is used.</para> </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> <para>If multiple integers and units are specified the time values are summed up.</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> </refsect2> </refsect1> <refsect1> <title>Example</title> <example> <title>/etc/tmpfiles.d/screen.conf example</title> <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 10d12h</programlisting> </example> </refsect1> <refsect1> <title>See Also</title> <para> <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry> </para> </refsect1> </refentry>