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<?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 tmpfiles</refpurpose>
</refnamediv>
<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</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>F</varname></term>
<listitem><para>truncate a file</para></listitem>
</varlistentry>
<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>
</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 10d
</programlisting>
</example>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>
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