mirror of
https://github.com/systemd/systemd.git
synced 2025-01-25 10:04:04 +03:00
a6d8474f39
This is very similar to d16a1c1bb6. For tmpfiles this is much less useful compared to sysusers, but let's add this anyway for consistency.
245 lines
9.7 KiB
XML
245 lines
9.7 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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SPDX-License-Identifier: LGPL-2.1+
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="systemd-tmpfiles"
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>systemd-tmpfiles</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Lennart</firstname>
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<surname>Poettering</surname>
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<email>lennart@poettering.net</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd-tmpfiles</refentrytitle>
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<manvolnum>8</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd-tmpfiles</refname>
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<refname>systemd-tmpfiles-setup.service</refname>
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<refname>systemd-tmpfiles-setup-dev.service</refname>
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<refname>systemd-tmpfiles-clean.service</refname>
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<refname>systemd-tmpfiles-clean.timer</refname>
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<refpurpose>Creates, deletes and cleans up volatile
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and temporary files and directories</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>systemd-tmpfiles</command>
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<arg choice="opt" rep="repeat">OPTIONS</arg>
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<arg choice="opt" rep="repeat"><replaceable>CONFIGFILE</replaceable></arg>
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</cmdsynopsis>
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<para>System units:
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<literallayout><filename>systemd-tmpfiles-setup.service</filename>
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<filename>systemd-tmpfiles-setup-dev.service</filename>
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<filename>systemd-tmpfiles-clean.service</filename>
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<filename>systemd-tmpfiles-clean.timer</filename></literallayout></para>
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<para>User units:
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<literallayout><filename>systemd-tmpfiles-setup.service</filename>
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<filename>systemd-tmpfiles-clean.service</filename>
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<filename>systemd-tmpfiles-clean.timer</filename></literallayout></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><command>systemd-tmpfiles</command> creates, deletes, and
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cleans up volatile and temporary files and directories, based on
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the configuration file format and location specified in
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<citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
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</para>
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<para>If invoked with no arguments, it applies all directives from all configuration
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files. When invoked with <option>--replace=<replaceable>PATH</replaceable></option>,
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arguments specified on the command line are used instead of the configuration file
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<replaceable>PATH</replaceable>. Otherwise, if one or more absolute filenames are
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passed on the command line, only the directives in these files are applied. If
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<literal>-</literal> is specified instead of a filename, directives are read from
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standard input. If only the basename of a configuration file is specified, all
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configuration directories as specified in
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<citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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are searched for a matching file and the file found that has the highest priority is
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executed.</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>The following options are understood:</para>
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<variablelist>
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<varlistentry>
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<term><option>--create</option></term>
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<listitem><para>If this option is passed, all files and
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directories marked with
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<varname>f</varname>,
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<varname>F</varname>,
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<varname>w</varname>,
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<varname>d</varname>,
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<varname>D</varname>,
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<varname>v</varname>,
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<varname>p</varname>,
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<varname>L</varname>,
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<varname>c</varname>,
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<varname>b</varname>,
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<varname>m</varname>
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in the configuration files are created or written to. Files
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and directories marked with
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<varname>z</varname>,
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<varname>Z</varname>,
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<varname>t</varname>,
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<varname>T</varname>,
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<varname>a</varname>, and
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<varname>A</varname> have their ownership, access mode and
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security labels set.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--clean</option></term>
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<listitem><para>If this option is passed, all files and
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directories with an age parameter configured will be cleaned
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up.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--remove</option></term>
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<listitem><para>If this option is passed, the contents of
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directories marked with <varname>D</varname> or
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<varname>R</varname>, and files or directories themselves
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marked with <varname>r</varname> or <varname>R</varname> are
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removed.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--user</option></term>
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<listitem><para>Execute "user" configuration, i.e. <filename>tmpfiles.d</filename>
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files in user configuration directories.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--boot</option></term>
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<listitem><para>Also execute lines with an exclamation mark.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--prefix=<replaceable>path</replaceable></option></term>
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<listitem><para>Only apply rules with paths that start with
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the specified prefix. This option can be specified multiple
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times.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--exclude-prefix=<replaceable>path</replaceable></option></term>
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<listitem><para>Ignore rules with paths that start with the
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specified prefix. This option can be specified multiple
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times.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--root=<replaceable>root</replaceable></option></term>
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<listitem><para>Takes a directory path as an argument. All paths will be prefixed with the given alternate
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<replaceable>root</replaceable> path, including config search paths.</para>
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<para>Note that this option does not alter how the users and groups specified in the configuration files are
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resolved. With or without this option, users and groups are always resolved according to the host's user and
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group databases, any such databases stored under the specified root directories are not
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consulted.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--replace=<replaceable>PATH</replaceable></option></term>
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<listitem><para>When this option is given, one ore more positional arguments
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must be specified. All configuration files found in the directories listed in
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<citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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will be read, and the configuration given on the command line will be
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handled instead of and with the same priority as the configuration file
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<replaceable>PATH</replaceable>.</para>
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<para>This option is intended to be used when package installation scripts
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are running and files belonging to that package are not yet available on
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disk, so their contents must be given on the command line, but the admin
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configuration might already exist and should be given higher priority.
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</para></listitem>
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</varlistentry>
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<xi:include href="standard-options.xml" xpointer="help" />
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<xi:include href="standard-options.xml" xpointer="version" />
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</variablelist>
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<para>It is possible to combine <option>--create</option>,
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<option>--clean</option>, and <option>--remove</option> in one
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invocation. For example, during boot the following command line is
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executed to ensure that all temporary and volatile directories are
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removed and created according to the configuration file:</para>
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<programlisting>systemd-tmpfiles --remove --create</programlisting>
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</refsect1>
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<refsect1>
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<title>Unprivileged --cleanup operation</title>
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<para><command>systemd-tmpfiles</command> tries to avoid changing
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the access and modification times on the directories it accesses,
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which requires <constant>CAP_ADMIN</constant> privileges. When
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running as non-root, directories which are checked for files to
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clean up will have their access time bumped, which might prevent
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their cleanup.
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</para>
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</refsect1>
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<refsect1>
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<title>Exit status</title>
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<para>On success, 0 is returned. If the configuration was invalid (invalid syntax, missing
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arguments, …), so some lines had to be ignored, but no other errors occurred,
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<constant>65</constant> is returned (<constant>EX_DATAERR</constant> from
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<filename>/usr/include/sysexits.h</filename>). Otherwise, <constant>1</constant> is returned
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(<constant>EXIT_FAILURE</constant> from <filename>/usr/include/stdlib.h</filename>).
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</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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