man/systemd-tmpfiles.xml

   1 <?xml version='1.0'?> <!--*-nxml-*-->
   2 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   3   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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   8   Copyright 2010 Lennart Poettering
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  23
  24 <refentry id="systemd-tmpfiles"
  25     xmlns:xi="http://www.w3.org/2001/XInclude">
  26
  27   <refentryinfo>
  28     <title>systemd-tmpfiles</title>
  29     <productname>systemd</productname>
  30
  31     <authorgroup>
  32       <author>
  33         <contrib>Developer</contrib>
  34         <firstname>Lennart</firstname>
  35         <surname>Poettering</surname>
  36         <email>lennart@poettering.net</email>
  37       </author>
  38     </authorgroup>
  39   </refentryinfo>
  40
  41   <refmeta>
  42     <refentrytitle>systemd-tmpfiles</refentrytitle>
  43     <manvolnum>8</manvolnum>
  44   </refmeta>
  45
  46   <refnamediv>
  47     <refname>systemd-tmpfiles</refname>
  48     <refname>systemd-tmpfiles-setup.service</refname>
  49     <refname>systemd-tmpfiles-setup-dev.service</refname>
  50     <refname>systemd-tmpfiles-clean.service</refname>
  51     <refname>systemd-tmpfiles-clean.timer</refname>
  52     <refpurpose>Creates, deletes and cleans up volatile
  53     and temporary files and directories</refpurpose>
  54   </refnamediv>
  55
  56   <refsynopsisdiv>
  57     <cmdsynopsis>
  58       <command>systemd-tmpfiles</command>
  59       <arg choice="opt" rep="repeat">OPTIONS</arg>
  60       <arg choice="opt" rep="repeat"><replaceable>CONFIGFILE</replaceable></arg>
  61     </cmdsynopsis>
  62
  63     <para><filename>systemd-tmpfiles-setup.service</filename></para>
  64     <para><filename>systemd-tmpfiles-setup-dev.service</filename></para>
  65     <para><filename>systemd-tmpfiles-clean.service</filename></para>
  66     <para><filename>systemd-tmpfiles-clean.timer</filename></para>
  67   </refsynopsisdiv>
  68
  69   <refsect1>
  70     <title>Description</title>
  71
  72     <para><command>systemd-tmpfiles</command> creates, deletes, and
  73     cleans up volatile and temporary files and directories, based on
  74     the configuration file format and location specified in
  75     <citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
  76     </para>
  77
  78     <para>If invoked with no arguments, it applies all directives from
  79     all configuration files. If one or more filenames are passed on
  80     the command line, only the directives in these files are applied.
  81     If only the basename of a configuration file is specified, all
  82     configuration directories as specified in
  83     <citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
  84     are searched for a matching file.</para>
  85   </refsect1>
  86
  87   <refsect1>
  88     <title>Options</title>
  89
  90     <para>The following options are understood:</para>
  91
  92     <variablelist>
  93       <varlistentry>
  94         <term><option>--create</option></term>
  95         <listitem><para>If this option is passed, all files and
  96         directories marked with
  97         <varname>f</varname>,
  98         <varname>F</varname>,
  99         <varname>w</varname>,
 100         <varname>d</varname>,
 101         <varname>D</varname>,
 102         <varname>v</varname>,
 103         <varname>p</varname>,
 104         <varname>L</varname>,
 105         <varname>c</varname>,
 106         <varname>b</varname>,
 107         <varname>m</varname>
 108         in the configuration files are created or written to. Files
 109         and directories marked with
 110         <varname>z</varname>,
 111         <varname>Z</varname>,
 112         <varname>t</varname>,
 113         <varname>T</varname>,
 114         <varname>a</varname>, and
 115         <varname>A</varname> have their ownership, access mode and
 116         security labels set. </para></listitem>
 117       </varlistentry>
 118
 119       <varlistentry>
 120         <term><option>--clean</option></term>
 121         <listitem><para>If this option is passed, all files and
 122         directories with an age parameter configured will be cleaned
 123         up.</para></listitem>
 124       </varlistentry>
 125
 126       <varlistentry>
 127         <term><option>--remove</option></term>
 128         <listitem><para>If this option is passed, the contents of
 129         directories marked with <varname>D</varname> or
 130         <varname>R</varname>, and files or directories themselves
 131         marked with <varname>r</varname> or <varname>R</varname> are
 132         removed.</para></listitem>
 133       </varlistentry>
 134       <varlistentry>
 135         <term><option>--boot</option></term>
 136         <listitem><para>Also execute lines with an exclamation mark.
 137         </para></listitem>
 138       </varlistentry>
 139       <varlistentry>
 140         <term><option>--prefix=<replaceable>path</replaceable></option></term>
 141         <listitem><para>Only apply rules with paths that start with
 142         the specified prefix. This option can be specified multiple
 143         times.</para></listitem>
 144       </varlistentry>
 145       <varlistentry>
 146         <term><option>--exclude-prefix=<replaceable>path</replaceable></option></term>
 147         <listitem><para>Ignore rules with paths that start with the
 148         specified prefix. This option can be specified multiple
 149         times.</para></listitem>
 150       </varlistentry>
 151       <varlistentry>
 152         <term><option>--root=<replaceable>root</replaceable></option></term>
 153         <listitem><para>Takes a directory path as an argument. All
 154         paths will be prefixed with the given alternate
 155         <replaceable>root</replaceable> path, including config search
 156         paths. </para></listitem>
 157       </varlistentry>
 158
 159       <xi:include href="standard-options.xml" xpointer="help" />
 160       <xi:include href="standard-options.xml" xpointer="version" />
 161     </variablelist>
 162
 163     <para>It is possible to combine <option>--create</option>,
 164     <option>--clean</option>, and <option>--remove</option> in one
 165     invocation. For example, during boot the following command line is
 166     executed to ensure that all temporary and volatile directories are
 167     removed and created according to the configuration file:</para>
 168
 169     <programlisting>systemd-tmpfiles --remove --create</programlisting>
 170
 171   </refsect1>
 172
 173   <refsect1>
 174     <title>Unprivileged --cleanup operation</title>
 175
 176     <para><command>systemd-tmpfiles</command> tries to avoid changing
 177     the access and modification times on the directories it accesses,
 178     which requires <constant>CAP_ADMIN</constant> privileges. When
 179     running as non-root, directories which are checked for files to
 180     clean up will have their access time bumped, which might prevent
 181     their cleanup.
 182     </para>
 183   </refsect1>
 184
 185   <refsect1>
 186     <title>Exit status</title>
 187
 188     <para>On success, 0 is returned, a non-zero failure code
 189     otherwise.</para>
 190   </refsect1>
 191
 192   <refsect1>
 193     <title>See Also</title>
 194     <para>
 195       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 196       <citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>
 197     </para>
 198   </refsect1>
 199
 200 </refentry>