<refnamediv>
<refname>tmpfiles.d</refname>
- <refpurpose>configuration for creation, deletion and cleaning of tmpfiles</refpurpose>
+ <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</command> uses
- <filename>/etc/tmpfiles.d/</filename> to describe the
- creation, cleaning and removal of temporary files and
- directories which usually reside in
- <filename>/var/run</filename> or
- <filename>/tmp</filename>). Each configuration file
- is named in the style of
- <filename>/etc/tmpfiles.d/<program>.conf</filename></para>
+ <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 /var/run/user 0755 root root 10d</programlisting>
+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>
+ <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>
+ <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>
+ <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>
+ <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</para></listitem>
+ <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 path</para></listitem>
+ <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</para></listitem>
+ <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>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 for this
- file or directory. If ommited or when set to -
- the default is used: 0755 for directories,
- 0644 for files.</para>
+ <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 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>
<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
- ommited or when set to - the default 0 is
- used.</para>
+ omitted or when set to - the default 0 (root)
+ is used. For 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>
<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 ommited or set to - no automatic clean-up is done.</para>
+ <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>See Also</title>
<para>
- <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd-tmpfiles</refentrytitle><manvolnum>8</manvolnum></citerefentry>
</para>
</refsect1>
~ianmdlvl / elogind.git / blobdiff