mirror of
https://github.com/systemd/systemd.git
synced 2024-12-23 21:35:11 +03:00
258 lines
12 KiB
XML
258 lines
12 KiB
XML
<?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 volatile and temporary files</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<para><filename>/usr/lib/tmpfiles.d/*.conf</filename></para>
|
|
<para><filename>/etc/tmpfiles.d/*.conf</filename></para>
|
|
<para><filename>/run/tmpfiles.d/*.conf</filename></para>
|
|
</refsynopsisdiv>
|
|
|
|
<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>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>Configuration Format</title>
|
|
|
|
<para>Each configuration file is named in the style of
|
|
<filename><program>.conf</filename>.
|
|
Files in <filename>/etc/</filename> overwrite
|
|
files with the same name in <filename>/usr/lib/</filename>.
|
|
Files in <filename>/run</filename> overwrite files with
|
|
the same name in <filename>/etc/</filename> and
|
|
<filename>/usr/lib/</filename>. Packages should install their
|
|
configuration files in <filename>/usr/lib/</filename>, files
|
|
in <filename>/etc/</filename> are reserved for the local
|
|
administration, which possibly decides to overwrite the
|
|
configurations installed from packages. All files are sorted
|
|
by filename in alphabetical order, regardless in which of the
|
|
directories they reside, to ensure that a specific
|
|
configuration file takes precedence over another file with
|
|
an alphabetically later name.</para>
|
|
|
|
<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 /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>p</varname></term>
|
|
<listitem><para>Create a named pipe (FIFO) if it doesn't exist yet</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><varname>x</varname></term>
|
|
<listitem><para>Ignore a path
|
|
during cleaning. Use this type
|
|
to exclude paths from clean-up
|
|
as controlled with the Age
|
|
parameter. Note that lines of
|
|
this type do not influence the
|
|
effect of r or R lines. Lines
|
|
of this type accept
|
|
shell-style globs in place of
|
|
of normal path
|
|
names.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><varname>r</varname></term>
|
|
<listitem><para>Remove a file
|
|
or directory if it
|
|
exists. This may not be used
|
|
to remove non-empty
|
|
directories, use R for
|
|
that. Lines of this type
|
|
accept shell-style globs in
|
|
place of normal path
|
|
names.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><varname>R</varname></term>
|
|
<listitem><para>Recursively
|
|
remove a path and all its
|
|
subdirectories (if it is a
|
|
directory). Lines of this type
|
|
accept shell-style globs in
|
|
place of normal path
|
|
names.</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><varname>z</varname></term>
|
|
<listitem><para>Set ownership, access
|
|
mode and relabel security context of
|
|
a file or directory if it exists.
|
|
Lines of this type accept shell-style
|
|
globs in place of normal path names.
|
|
</para></listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><varname>Z</varname></term>
|
|
<listitem><para>Recursively set
|
|
ownership, access mode and relabel
|
|
security context of a path and
|
|
all its subdirectories (if it is a
|
|
directory). Lines of this type accept
|
|
shell-style globs in place of normal
|
|
path names.</para></listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect2>
|
|
|
|
<refsect2>
|
|
<title>Mode</title>
|
|
|
|
<para>The file access mode to use when
|
|
creating this file or directory. If omitted or
|
|
when set to - the default is used: 0755 for
|
|
directories, 0644 for files. For z, Z lines
|
|
if omitted or when set to - the file access mode will
|
|
not be modified. This parameter is ignored for x, r, R
|
|
lines.</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 (root)
|
|
is used. For z, Z lines when omitted or when set to -
|
|
the file ownership will not be modified.
|
|
These parameters are ignored for x, r, R lines.</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>,
|
|
<citerefentry><refentrytitle>systemd-tmpfiles</refentrytitle><manvolnum>8</manvolnum></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
|
|
</refentry>
|