systemd/man/systemd-tmpfiles.xml

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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">
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<refentry id="systemd-tmpfiles"
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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 absolute filenames are passed on
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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 with paths that start 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 with paths that start 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>
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</refentry>