3 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
5 This file is part of systemd.
7 Copyright 2010 Brandon Philips
9 systemd is free software; you can redistribute it and/or modify it
10 under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 systemd is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 <refentry id="tmpfiles.d">
25 <title>tmpfiles.d</title>
26 <productname>systemd</productname>
30 <contrib>Documentation</contrib>
31 <firstname>Brandon</firstname>
32 <surname>Philips</surname>
33 <email>brandon@ifup.org</email>
39 <refentrytitle>tmpfiles.d</refentrytitle>
40 <manvolnum>5</manvolnum>
44 <refname>tmpfiles.d</refname>
45 <refpurpose>configuration for creation, deletion and cleaning of tmpfiles</refpurpose>
49 <title>Description</title>
51 <para><command>systemd</command> uses
52 <filename>/etc/tmpfiles.d/</filename> to describe the
53 creation, cleaning and removal of temporary files and
54 directories which usually reside in
55 <filename>/var/run</filename> or
56 <filename>/tmp</filename>). Each configuration file
57 is named in the style of
58 <filename>/etc/tmpfiles.d/<program>.conf</filename></para>
62 <title>Configuration Format</title>
64 <para>The configuration format is one line per path
65 containing action, mode, ownership and age
68 <programlisting>type path mode uid gid age
69 d /var/run/user 0755 root root 10d</programlisting>
74 <para>The file access mode to use for this
75 file or directory. If ommited or when set to -
76 the default is used: 0755 for directories,
77 0644 for files.</para>
81 <title>uid, gid</title>
83 <para>The user and group to use for this file
84 or directory. This may either be a numeric
85 user/group ID or a user or group name. If
86 ommited or when set to - the default 0 is
94 <term><varname>f</varname></term>
95 <listitem><para>create a file if it doesn't exist yet</para></listitem>
99 <term><varname>F</varname></term>
100 <listitem><para>create or truncate a file</para></listitem>
104 <term><varname>d</varname></term>
105 <listitem><para>create a directory if it doesn't exist yet</para></listitem>
109 <term><varname>D</varname></term>
110 <listitem><para>create or empty a directory</para></listitem>
114 <term><varname>x</varname></term>
115 <listitem><para>ignore a path</para></listitem>
119 <term><varname>r</varname></term>
120 <listitem><para>remove a path</para></listitem>
124 <term><varname>R</varname></term>
125 <listitem><para>recursively remove a path</para></listitem>
132 <para>The date field, when set, is used to
133 decide what files to delete when cleaning. If
134 a file or directory is older than the current
135 time minus the age field it is deleted. The
136 field format is a series of integers each
137 followed by one of the following
138 postfixes for the respective time units:</para>
142 <term><varname>s</varname></term>
143 <term><varname>min</varname></term>
144 <term><varname>h</varname></term>
145 <term><varname>d</varname></term>
146 <term><varname>w</varname></term>
147 <term><varname>ms</varname></term>
148 <term><varname>m</varname></term>
149 <term><varname>us</varname></term></varlistentry>
152 <para>If multiple integers and units are specified the time values are summed up.</para>
154 <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>
161 <title>Example</title>
163 <title>/etc/tmpfiles.d/screen.conf example</title>
164 <para><command>screen</command> needs two directories created at boot with specific modes and ownership.</para>
166 <programlisting>d /var/run/screens 1777 root root 10d
167 d /var/run/uscreens 0755 root root 10d12h</programlisting>
172 <title>See Also</title>
174 <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>