systemd/man/systemd-tmpfiles.xml

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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
        "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">

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<refentry id="systemd-tmpfiles"
          xmlns:xi="http://www.w3.org/2001/XInclude">

        <refentryinfo>
                <title>systemd-tmpfiles</title>
                <productname>systemd</productname>

                <authorgroup>
                        <author>
                                <contrib>Developer</contrib>
                                <firstname>Lennart</firstname>
                                <surname>Poettering</surname>
                                <email>lennart@poettering.net</email>
                        </author>
                </authorgroup>
        </refentryinfo>

        <refmeta>
                <refentrytitle>systemd-tmpfiles</refentrytitle>
                <manvolnum>8</manvolnum>
        </refmeta>

        <refnamediv>
                <refname>systemd-tmpfiles</refname>
                <refname>systemd-tmpfiles-setup.service</refname>
                <refname>systemd-tmpfiles-setup-dev.service</refname>
                <refname>systemd-tmpfiles-clean.service</refname>
                <refname>systemd-tmpfiles-clean.timer</refname>
                <refpurpose>Creates, deletes and cleans up volatile
                and temporary files and directories</refpurpose>
        </refnamediv>

        <refsynopsisdiv>
                <cmdsynopsis>
                        <command>systemd-tmpfiles</command>
                        <arg choice="opt" rep="repeat">OPTIONS</arg>
                        <arg choice="opt" rep="repeat"><replaceable>CONFIGFILE</replaceable></arg>
                </cmdsynopsis>

                <para><filename>systemd-tmpfiles-setup.service</filename></para>
                <para><filename>systemd-tmpfiles-setup-dev.service</filename></para>
                <para><filename>systemd-tmpfiles-clean.service</filename></para>
                <para><filename>systemd-tmpfiles-clean.timer</filename></para>
        </refsynopsisdiv>

        <refsect1>
                <title>Description</title>

                <para><command>systemd-tmpfiles</command> creates,
                deletes, and cleans up volatile and temporary files and
                directories, based on the configuration file format and
                location specified in
                <citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
                </para>

                <para>If invoked with no arguments, it applies all
                directives from all configuration files. If one or
                more filenames are passed on the command line, only
                the directives in these files are applied. If only
                the basename of a configuration file is specified,
                all configuration directories as specified in
                <citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
                are searched for a matching file.</para>
        </refsect1>

        <refsect1>
                <title>Options</title>

                <para>The following options are understood:</para>

                <variablelist>
                        <varlistentry>
                                <term><option>--create</option></term>
                                <listitem><para>If this option is
                                passed, all files and directories
                                marked with <varname>f</varname>,
                                <varname>F</varname>,
                                <varname>w</varname>,
                                <varname>d</varname>,
                                <varname>D</varname>,
                                <varname>v</varname>,
                                <varname>p</varname>,
                                <varname>L</varname>,
                                <varname>c</varname>,
                                <varname>b</varname>,
                                <varname>m</varname> in the
                                configuration files are created or
                                written to. Files and directories
                                marked with <varname>z</varname>,
                                <varname>Z</varname>,
                                <varname>t</varname>,
                                <varname>T</varname>,
                                <varname>a</varname>, and
                                <varname>A</varname> have their
                                ownership, access mode and security
                                labels set. </para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><option>--clean</option></term>
                                <listitem><para>If this option is
                                passed, all files and directories with
                                an age parameter configured will be
                                cleaned up.</para></listitem>
                        </varlistentry>

                        <varlistentry>
                                <term><option>--remove</option></term>
                                <listitem><para>If this option is
                                passed, the contents of
                                directories marked with
                                <varname>D</varname> or
                                <varname>R</varname>, and files or
                                directories themselves marked with
                                <varname>r</varname> or
                                <varname>R</varname> are
                                removed.</para></listitem>
                        </varlistentry>
                        <varlistentry>
                                <term><option>--boot</option></term>
                                <listitem><para>Also execute lines
                                with an exclamation mark.
                                </para></listitem>
                        </varlistentry>
                        <varlistentry>
                                <term><option>--prefix=<replaceable>path</replaceable></option></term>
                                <listitem><para>Only apply rules that
                                apply to paths with the specified
                                prefix. This option can be specified
                                multiple times.</para></listitem>
                        </varlistentry>
                        <varlistentry>
                                <term><option>--exclude-prefix=<replaceable>path</replaceable></option></term>
                                <listitem><para>Ignore rules that
                                apply to paths with the specified
                                prefix. This option can be specified
                                multiple times.</para></listitem>
                        </varlistentry>
                        <varlistentry>
                                <term><option>--root=<replaceable>root</replaceable></option></term>
                                <listitem><para>Takes a directory path
                                as an argument. All paths will be
                                prefixed with the given alternate <replaceable>root</replaceable>
                                path, including config search paths.
                                </para></listitem>
                        </varlistentry>

                        <xi:include href="standard-options.xml" xpointer="help" />
                        <xi:include href="standard-options.xml" xpointer="version" />
                </variablelist>

                <para>It is possible to combine
                <option>--create</option>, <option>--clean</option>,
                and <option>--remove</option> in one invocation. For
                example, during boot the following command line is
                executed to ensure that all temporary and volatile
                directories are removed and created according to the
                configuration file:</para>

                <programlisting>systemd-tmpfiles --remove --create</programlisting>

        </refsect1>

        <refsect1>
                <title>Unprivileged --cleanup operation</title>

                <para><command>systemd-tmpfiles</command> tries to
                avoid changing the access and modification times on
                the directories it accesses, which requires
                <constant>CAP_ADMIN</constant> privileges. When
                running as non-root, directories which are checked for
                files to clean up will have their access time bumped,
                which might prevent their cleanup.
                </para>
        </refsect1>

        <refsect1>
                <title>Exit status</title>

                <para>On success, 0 is returned, a non-zero failure
                code otherwise.</para>
        </refsect1>

        <refsect1>
                <title>See Also</title>
                <para>
                        <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                        <citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
                </para>
        </refsect1>

</refentry>