]>
Commit | Line | Data |
---|---|---|
4149f86d BP |
1 | <?xml version="1.0"?> |
2 | <!--*-nxml-*--> | |
3 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> | |
4 | <!-- | |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2010 Brandon Philips | |
8 | ||
9 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
10 | under the terms of the GNU Lesser General Public License as published by |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
4149f86d BP |
12 | (at your option) any later version. |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 17 | Lesser General Public License for more details. |
4149f86d | 18 | |
5430f7f2 | 19 | You should have received a copy of the GNU Lesser General Public License |
4149f86d BP |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
21 | --> | |
22 | <refentry id="tmpfiles.d"> | |
23 | ||
24 | <refentryinfo> | |
25 | <title>tmpfiles.d</title> | |
26 | <productname>systemd</productname> | |
27 | ||
28 | <authorgroup> | |
29 | <author> | |
30 | <contrib>Documentation</contrib> | |
31 | <firstname>Brandon</firstname> | |
32 | <surname>Philips</surname> | |
33 | <email>brandon@ifup.org</email> | |
34 | </author> | |
35 | </authorgroup> | |
36 | </refentryinfo> | |
37 | ||
38 | <refmeta> | |
39 | <refentrytitle>tmpfiles.d</refentrytitle> | |
40 | <manvolnum>5</manvolnum> | |
41 | </refmeta> | |
42 | ||
43 | <refnamediv> | |
44 | <refname>tmpfiles.d</refname> | |
522d4a49 LP |
45 | <refpurpose>Configuration for creation, deletion and |
46 | cleaning of volatile and temporary files</refpurpose> | |
4149f86d BP |
47 | </refnamediv> |
48 | ||
a7c64469 LP |
49 | <refsynopsisdiv> |
50 | <para><filename>/etc/tmpfiles.d/*.conf</filename></para> | |
772f8371 | 51 | <para><filename>/run/tmpfiles.d/*.conf</filename></para> |
fc1a2e06 | 52 | <para><filename>/usr/lib/tmpfiles.d/*.conf</filename></para> |
a7c64469 LP |
53 | </refsynopsisdiv> |
54 | ||
4149f86d BP |
55 | <refsect1> |
56 | <title>Description</title> | |
57 | ||
0e25e94e KS |
58 | <para><command>systemd-tmpfiles</command> uses the |
59 | configuration files from the above directories to describe the | |
60 | creation, cleaning and removal of volatile and | |
61 | temporary files and directories which usually reside | |
62 | in directories such as <filename>/run</filename> | |
63 | or <filename>/tmp</filename>.</para> | |
e66cf1a3 LP |
64 | |
65 | <para>Volatile and temporary files and directories are | |
66 | those located in <filename>/run</filename> (and its | |
67 | alias <filename>/var/run</filename>), | |
68 | <filename>/tmp</filename>, | |
69 | <filename>/var/tmp</filename>, the API file systems | |
70 | such as <filename>/sys</filename> or | |
71 | <filename>/proc</filename>, as well as some other | |
72 | directories below <filename>/var</filename>.</para> | |
73 | ||
74 | <para>System daemons frequently require private | |
75 | runtime directories below <filename>/run</filename> to | |
b8bde116 | 76 | place communication sockets and similar in. For these, |
e66cf1a3 LP |
77 | consider declaring them in their unit files using |
78 | <varname>RuntimeDirectory=</varname> | |
79 | (see <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry> for details), | |
80 | if this is feasible.</para> | |
4149f86d BP |
81 | </refsect1> |
82 | ||
83 | <refsect1> | |
0e25e94e | 84 | <title>Configuration Format</title> |
4149f86d | 85 | |
6110885c | 86 | <para>Each configuration file shall be named in the |
ef72c1f0 ZJS |
87 | style of |
88 | <filename><replaceable>package</replaceable>.conf</filename> | |
89 | or | |
90 | <filename><replaceable>package</replaceable>-<replaceable>part</replaceable>.conf</filename>. | |
91 | The second variant should be used when it is desirable | |
92 | to make it easy to override just this part of | |
93 | configuration.</para> | |
94 | ||
95 | <para>Files in <filename>/etc/tmpfiles.d</filename> | |
96 | override files with the same name in | |
97 | <filename>/usr/lib/tmpfiles.d</filename> and | |
98 | <filename>/run/tmpfiles.d</filename>. Files in | |
99 | <filename>/run/tmpfiles.d</filename> override files | |
100 | with the same name in | |
101 | <filename>/usr/lib/tmpfiles.d</filename>. Packages | |
6110885c | 102 | should install their configuration files in |
ef72c1f0 ZJS |
103 | <filename>/usr/lib/tmpfiles.d</filename>. Files in |
104 | <filename>/etc/tmpfiles.d</filename> are reserved for | |
105 | the local administrator, who may use this logic to | |
106 | override the configuration files installed by vendor | |
107 | packages. All configuration files are sorted by their | |
494a6682 JE |
108 | filename in lexicographic order, regardless of which |
109 | of the directories they reside in. If multiple files | |
ef72c1f0 | 110 | specify the same path, the entry in the file with the |
ff8d1aba JS |
111 | lexicographically earliest name will be applied. |
112 | All other conflicting entries will be logged as | |
1910cd0e LP |
113 | errors. When two lines are prefix and suffix of each |
114 | other, then the prefix is always processed first, the | |
8d0e0ddd | 115 | suffix later. Otherwise, the files/directories are |
1910cd0e | 116 | processed in the order they are listed.</para> |
6110885c KS |
117 | |
118 | <para>If the administrator wants to disable a | |
79640424 | 119 | configuration file supplied by the vendor, the |
6110885c KS |
120 | recommended way is to place a symlink to |
121 | <filename>/dev/null</filename> in | |
122 | <filename>/etc/tmpfiles.d/</filename> bearing the | |
e9dd9f95 | 123 | same filename.</para> |
772f8371 | 124 | |
0e25e94e | 125 | <para>The configuration format is one line per path |
ef72c1f0 | 126 | containing type, path, mode, ownership, age, and argument |
0e25e94e | 127 | fields:</para> |
aeee2322 | 128 | |
ef72c1f0 | 129 | <programlisting>#Type Path Mode UID GID Age Argument |
468d726b LP |
130 | d /run/user 0755 root root 10d - |
131 | L /tmp/foobar - - - - /dev/null</programlisting> | |
aeee2322 LP |
132 | |
133 | <refsect2> | |
88aebb62 | 134 | <title>Type</title> |
1731e34a | 135 | |
c4708f13 ZJS |
136 | <para>The type consists of a single letter and |
137 | optionally an exclamation mark.</para> | |
138 | ||
1731e34a LP |
139 | <para>The following line types are understood:</para> |
140 | ||
aeee2322 LP |
141 | <variablelist> |
142 | <varlistentry> | |
143 | <term><varname>f</varname></term> | |
ef72c1f0 | 144 | <listitem><para>Create a file if it does not exist yet. If the argument parameter is given, it will be written to the file.</para></listitem> |
aeee2322 LP |
145 | </varlistentry> |
146 | ||
147 | <varlistentry> | |
148 | <term><varname>F</varname></term> | |
ef72c1f0 | 149 | <listitem><para>Create or truncate a file. If the argument parameter is given, it will be written to the file.</para></listitem> |
31ed59c5 LP |
150 | </varlistentry> |
151 | ||
152 | <varlistentry> | |
153 | <term><varname>w</varname></term> | |
54693d9b DR |
154 | <listitem><para>Write the argument parameter to a file, if the file exists. |
155 | Lines of this type accept shell-style globs in place of normal path | |
156 | names. The argument parameter will be written without a trailing | |
157 | newline. C-style backslash escapes are interpreted.</para></listitem> | |
aeee2322 LP |
158 | </varlistentry> |
159 | ||
160 | <varlistentry> | |
161 | <term><varname>d</varname></term> | |
ef72c1f0 | 162 | <listitem><para>Create a directory if it does not exist yet.</para></listitem> |
aeee2322 LP |
163 | </varlistentry> |
164 | ||
165 | <varlistentry> | |
166 | <term><varname>D</varname></term> | |
ef72c1f0 | 167 | <listitem><para>Create or empty a directory.</para></listitem> |
aeee2322 LP |
168 | </varlistentry> |
169 | ||
d7b8eec7 LP |
170 | <varlistentry> |
171 | <term><varname>v</varname></term> | |
172 | <listitem><para>Create a | |
173 | subvolume if the path does not | |
174 | exist yet and the file system | |
175 | supports this (btrfs). Otherwise | |
176 | create a normal directory, in | |
177 | the same way as | |
178 | <varname>d</varname>.</para></listitem> | |
179 | </varlistentry> | |
180 | ||
ee17ee7c LP |
181 | <varlistentry> |
182 | <term><varname>p</varname></term> | |
1554afae LP |
183 | <term><varname>p+</varname></term> |
184 | <listitem><para>Create a named | |
185 | pipe (FIFO) if it does not | |
186 | exist yet. If suffixed with | |
187 | <varname>+</varname> and a | |
188 | file already exists where the | |
8d0e0ddd | 189 | pipe is to be created, it will |
1554afae LP |
190 | be removed and be replaced by |
191 | the pipe.</para></listitem> | |
ee17ee7c LP |
192 | </varlistentry> |
193 | ||
468d726b LP |
194 | <varlistentry> |
195 | <term><varname>L</varname></term> | |
2e78fa79 LP |
196 | <term><varname>L+</varname></term> |
197 | <listitem><para>Create a | |
198 | symlink if it does not exist | |
199 | yet. If suffixed with | |
200 | <varname>+</varname> and a | |
201 | file already exists where the | |
8d0e0ddd | 202 | symlink is to be created, it |
2e78fa79 LP |
203 | will be removed and be |
204 | replaced by the | |
2f3b873a KS |
205 | symlink. If the argument is omitted, |
206 | symlinks to files with the same name | |
207 | residing in the directory | |
208 | <filename>/usr/share/factory/</filename> | |
209 | are created.</para></listitem> | |
468d726b LP |
210 | </varlistentry> |
211 | ||
212 | <varlistentry> | |
213 | <term><varname>c</varname></term> | |
1554afae LP |
214 | <term><varname>c+</varname></term> |
215 | <listitem><para>Create a | |
216 | character device node if it | |
217 | does not exist yet. If | |
218 | suffixed with | |
219 | <varname>+</varname> and a | |
220 | file already exists where the | |
8d0e0ddd | 221 | device node is to be created, |
1554afae LP |
222 | it will be removed and be |
223 | replaced by the device | |
1dfcee59 TG |
224 | node. It is recommended to suffix this |
225 | entry with an exclamation mark to only | |
226 | create static device nodes at boot, | |
227 | as udev will not manage static device | |
228 | nodes that are created at runtime. | |
229 | </para></listitem> | |
468d726b LP |
230 | </varlistentry> |
231 | ||
232 | <varlistentry> | |
233 | <term><varname>b</varname></term> | |
1554afae LP |
234 | <term><varname>b+</varname></term> |
235 | <listitem><para>Create a block | |
236 | device node if it does not | |
237 | exist yet. If suffixed with | |
238 | <varname>+</varname> and a | |
239 | file already exists where the | |
8d0e0ddd | 240 | device node is to be created, |
1554afae LP |
241 | it will be removed and be |
242 | replaced by the device | |
1dfcee59 TG |
243 | node. It is recommended to suffix this |
244 | entry with an exclamation mark to only | |
245 | create static device nodes at boot, | |
246 | as udev will not manage static device | |
247 | nodes that are created at runtime. | |
248 | </para></listitem> | |
468d726b LP |
249 | </varlistentry> |
250 | ||
849958d1 LP |
251 | <varlistentry> |
252 | <term><varname>C</varname></term> | |
e156347e LP |
253 | <listitem><para>Recursively |
254 | copy a file or directory, if | |
255 | the destination files or | |
8d0e0ddd | 256 | directories do not exist |
e156347e LP |
257 | yet. Note that this command |
258 | will not descend into | |
259 | subdirectories if the | |
260 | destination directory already | |
8d0e0ddd | 261 | exists. Instead, the entire |
e156347e | 262 | copy operation is |
2f3b873a KS |
263 | skipped. If the argument is omitted, |
264 | files from the source directory | |
265 | <filename>/usr/share/factory/</filename> | |
266 | with the same name are copied.</para></listitem> | |
849958d1 LP |
267 | </varlistentry> |
268 | ||
aeee2322 LP |
269 | <varlistentry> |
270 | <term><varname>x</varname></term> | |
b8bb3e8f LP |
271 | <listitem><para>Ignore a path |
272 | during cleaning. Use this type | |
273 | to exclude paths from clean-up | |
274 | as controlled with the Age | |
275 | parameter. Note that lines of | |
276 | this type do not influence the | |
ef72c1f0 ZJS |
277 | effect of <varname>r</varname> |
278 | or <varname>R</varname> lines. | |
279 | Lines of this type accept | |
b8bb3e8f | 280 | shell-style globs in place of |
ef72c1f0 ZJS |
281 | normal path names. |
282 | </para></listitem> | |
aeee2322 LP |
283 | </varlistentry> |
284 | ||
78a92a5a MS |
285 | <varlistentry> |
286 | <term><varname>X</varname></term> | |
287 | <listitem><para>Ignore a path | |
e776c8cf VP |
288 | during cleaning. Use this type |
289 | to exclude paths from clean-up | |
290 | as controlled with the Age | |
ef72c1f0 ZJS |
291 | parameter. Unlike |
292 | <varname>x</varname>, this | |
e776c8cf | 293 | parameter will not exclude the |
ef72c1f0 ZJS |
294 | content if path is a |
295 | directory, but only directory | |
296 | itself. Note that lines of | |
297 | this type do not influence the | |
298 | effect of <varname>r</varname> | |
299 | or <varname>R</varname> lines. | |
300 | Lines of this type accept | |
301 | shell-style globs in place of | |
302 | normal path names. | |
303 | </para></listitem> | |
78a92a5a MS |
304 | </varlistentry> |
305 | ||
aeee2322 LP |
306 | <varlistentry> |
307 | <term><varname>r</varname></term> | |
b8bb3e8f | 308 | <listitem><para>Remove a file |
ef72c1f0 ZJS |
309 | or directory if it exists. |
310 | This may not be used to remove | |
311 | non-empty directories, use | |
312 | <varname>R</varname> for that. | |
313 | Lines of this type accept | |
314 | shell-style globs in place of | |
315 | normal path | |
b8bb3e8f | 316 | names.</para></listitem> |
aeee2322 LP |
317 | </varlistentry> |
318 | ||
319 | <varlistentry> | |
320 | <term><varname>R</varname></term> | |
b8bb3e8f LP |
321 | <listitem><para>Recursively |
322 | remove a path and all its | |
323 | subdirectories (if it is a | |
324 | directory). Lines of this type | |
325 | accept shell-style globs in | |
326 | place of normal path | |
327 | names.</para></listitem> | |
aeee2322 | 328 | </varlistentry> |
462d63db | 329 | |
777b87e7 MS |
330 | <varlistentry> |
331 | <term><varname>z</varname></term> | |
e73a03e0 LP |
332 | <listitem><para>Adjust the |
333 | access mode, group and user, | |
334 | and restore the SELinux security | |
335 | context of a file or directory, | |
336 | if it exists. Lines of this | |
337 | type accept shell-style globs | |
338 | in place of normal path names. | |
777b87e7 MS |
339 | </para></listitem> |
340 | </varlistentry> | |
341 | ||
462d63db MS |
342 | <varlistentry> |
343 | <term><varname>Z</varname></term> | |
669e49fe | 344 | <listitem><para>Recursively |
e73a03e0 LP |
345 | set the access mode, group and |
346 | user, and restore the SELinux | |
347 | security context of a file or | |
348 | directory if it exists, as | |
349 | well as of its subdirectories | |
350 | and the files contained | |
351 | therein (if applicable). Lines | |
352 | of this type accept | |
353 | shell-style globs in place of | |
354 | normal path | |
669e49fe | 355 | names.</para></listitem> |
462d63db | 356 | </varlistentry> |
ebf4e801 MW |
357 | |
358 | <varlistentry> | |
359 | <term><varname>t</varname></term> | |
360 | <listitem><para>Set extended | |
361 | attributes on item. It may be | |
362 | used in conjunction with other | |
363 | types (only <varname>d</varname>, | |
364 | <varname>D</varname>, <varname>f</varname>, | |
365 | <varname>F</varname>, <varname>L</varname>, | |
366 | <varname>p</varname>, <varname>c</varname>, | |
367 | <varname>b</varname>, makes sense). | |
368 | If used as a standalone line, then | |
369 | <command>systemd-tmpfiles</command> | |
370 | will try to set extended | |
371 | attributes on specified path. | |
372 | This can be especially used to set | |
373 | SMACK labels. | |
374 | </para></listitem> | |
375 | </varlistentry> | |
aeee2322 | 376 | </variablelist> |
c4708f13 ZJS |
377 | |
378 | <para>If the exclamation mark is used, this | |
379 | line is only safe of execute during boot, and | |
380 | can break a running system. Lines without the | |
381 | exclamation mark are presumed to be safe to | |
382 | execute at any time, e.g. on package upgrades. | |
383 | <command>systemd-tmpfiles</command> will | |
384 | execute line with an exclamation mark only if | |
81815651 | 385 | option <option>--boot</option> is given. |
c4708f13 ZJS |
386 | </para> |
387 | ||
388 | <para>For example: | |
9fccdb0f | 389 | <programlisting># Make sure these are created by default so that nobody else can |
c4708f13 ZJS |
390 | d /tmp/.X11-unix 1777 root root 10d |
391 | ||
392 | # Unlink the X11 lock files | |
9fccdb0f | 393 | r! /tmp/.X[0-9]*-lock</programlisting> |
c4708f13 ZJS |
394 | The second line in contrast to the first one |
395 | would break a running system, and will only be | |
81815651 | 396 | executed with <option>--boot</option>.</para> |
aeee2322 LP |
397 | </refsect2> |
398 | ||
1731e34a LP |
399 | <refsect2> |
400 | <title>Path</title> | |
401 | ||
402 | <para>The file system path specification supports simple specifier | |
403 | expansion. The following expansions are | |
404 | understood:</para> | |
405 | ||
406 | <table> | |
407 | <title>Specifiers available</title> | |
408 | <tgroup cols='3' align='left' colsep='1' rowsep='1'> | |
409 | <colspec colname="spec" /> | |
410 | <colspec colname="mean" /> | |
411 | <colspec colname="detail" /> | |
412 | <thead> | |
413 | <row> | |
414 | <entry>Specifier</entry> | |
415 | <entry>Meaning</entry> | |
416 | <entry>Details</entry> | |
417 | </row> | |
418 | </thead> | |
419 | <tbody> | |
420 | <row> | |
421 | <entry><literal>%m</literal></entry> | |
422 | <entry>Machine ID</entry> | |
423 | <entry>The machine ID of the running system, formatted as string. See <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry> | |
424 | </row> | |
425 | <row> | |
426 | <entry><literal>%b</literal></entry> | |
427 | <entry>Boot ID</entry> | |
428 | <entry>The boot ID of the running system, formatted as string. See <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry> for more information.</entry> | |
429 | </row> | |
430 | <row> | |
431 | <entry><literal>%H</literal></entry> | |
432 | <entry>Host name</entry> | |
433 | <entry>The hostname of the running system.</entry> | |
434 | </row> | |
435 | <row> | |
436 | <entry><literal>%v</literal></entry> | |
437 | <entry>Kernel release</entry> | |
438 | <entry>Identical to <command>uname -r</command> output.</entry> | |
439 | </row> | |
440 | <row> | |
441 | <entry><literal>%%</literal></entry> | |
442 | <entry>Escaped %</entry> | |
443 | <entry>Single percent sign.</entry> | |
444 | </row> | |
445 | </tbody> | |
446 | </tgroup> | |
447 | </table> | |
448 | </refsect2> | |
449 | ||
aeee2322 | 450 | <refsect2> |
88aebb62 LP |
451 | <title>Mode</title> |
452 | ||
b8bb3e8f LP |
453 | <para>The file access mode to use when |
454 | creating this file or directory. If omitted or | |
79640424 | 455 | when set to -, the default is used: 0755 for |
ef72c1f0 ZJS |
456 | directories, 0644 for all other file objects. |
457 | For <varname>z</varname>, <varname>Z</varname> | |
458 | lines, if omitted or when set to | |
459 | <literal>-</literal>, the file access mode | |
460 | will not be modified. This parameter is | |
461 | ignored for <varname>x</varname>, | |
462 | <varname>r</varname>, <varname>R</varname>, | |
ebf4e801 | 463 | <varname>L</varname>, <varname>t</varname> lines.</para> |
abef3f91 LP |
464 | |
465 | <para>Optionally, if prefixed with | |
8d0e0ddd | 466 | <literal>~</literal>, the access mode is masked |
abef3f91 LP |
467 | based on the already set access bits for |
468 | existing file or directories: if the existing | |
8d0e0ddd | 469 | file has all executable bits unset, all |
abef3f91 | 470 | executable bits are removed from the new |
8d0e0ddd JE |
471 | access mode, too. Similarly, if all read bits |
472 | are removed from the old access mode, they will | |
abef3f91 LP |
473 | be removed from the new access mode too, and |
474 | if all write bits are removed, they will be | |
475 | removed from the new access mode too. In | |
45df8656 | 476 | addition, the sticky/SUID/SGID bit is removed unless |
abef3f91 LP |
477 | applied to a directory. This |
478 | functionality is particularly useful in | |
479 | conjunction with <varname>Z</varname>.</para> | |
88aebb62 LP |
480 | </refsect2> |
481 | ||
482 | <refsect2> | |
483 | <title>UID, GID</title> | |
484 | ||
485 | <para>The user and group to use for this file | |
486 | or directory. This may either be a numeric | |
487 | user/group ID or a user or group name. If | |
ef72c1f0 ZJS |
488 | omitted or when set to <literal>-</literal>, |
489 | the default 0 (root) is used. For | |
490 | <varname>z</varname>, <varname>Z</varname> | |
491 | lines, when omitted or when set to -, the file | |
492 | ownership will not be modified. These | |
493 | parameters are ignored for | |
494 | <varname>x</varname>, <varname>r</varname>, | |
ebf4e801 MW |
495 | <varname>R</varname>, <varname>L</varname>, |
496 | <varname>t</varname> lines.</para> | |
88aebb62 LP |
497 | </refsect2> |
498 | ||
499 | <refsect2> | |
500 | <title>Age</title> | |
aeee2322 LP |
501 | <para>The date field, when set, is used to |
502 | decide what files to delete when cleaning. If | |
503 | a file or directory is older than the current | |
79640424 | 504 | time minus the age field, it is deleted. The |
aeee2322 LP |
505 | field format is a series of integers each |
506 | followed by one of the following | |
507 | postfixes for the respective time units:</para> | |
508 | ||
509 | <variablelist> | |
510 | <varlistentry> | |
511 | <term><varname>s</varname></term> | |
512 | <term><varname>min</varname></term> | |
513 | <term><varname>h</varname></term> | |
514 | <term><varname>d</varname></term> | |
515 | <term><varname>w</varname></term> | |
516 | <term><varname>ms</varname></term> | |
517 | <term><varname>m</varname></term> | |
518 | <term><varname>us</varname></term></varlistentry> | |
519 | </variablelist> | |
4149f86d | 520 | |
79640424 | 521 | <para>If multiple integers and units are specified, the time |
ef44ed4e | 522 | values are summed up. If an integer is given without a unit, |
a2558205 TG |
523 | s is assumed. |
524 | </para> | |
525 | ||
526 | <para>When the age is set to zero, the files are cleaned | |
527 | unconditionally.</para> | |
4149f86d | 528 | |
ef72c1f0 ZJS |
529 | <para>The age field only applies to lines |
530 | starting with <varname>d</varname>, | |
531 | <varname>D</varname>, and | |
532 | <varname>x</varname>. If omitted or set to | |
533 | <literal>-</literal>, no automatic clean-up is | |
534 | done.</para> | |
24f3a374 LP |
535 | |
536 | <para>If the age field starts with a tilde | |
ef72c1f0 ZJS |
537 | character <literal>~</literal>, the clean-up |
538 | is only applied to files and directories one | |
539 | level inside the directory specified, but not | |
540 | the files and directories immediately inside | |
541 | it.</para> | |
aeee2322 | 542 | </refsect2> |
4149f86d | 543 | |
468d726b LP |
544 | <refsect2> |
545 | <title>Argument</title> | |
546 | ||
ef72c1f0 ZJS |
547 | <para>For <varname>L</varname> lines |
548 | determines the destination path of the | |
549 | symlink. For <varname>c</varname>, | |
550 | <varname>b</varname> determines the | |
468d726b | 551 | major/minor of the device node, with major and |
ef72c1f0 ZJS |
552 | minor formatted as integers, separated by |
553 | <literal>:</literal>, e.g. | |
554 | <literal>1:3</literal>. For | |
555 | <varname>f</varname>, <varname>F</varname>, | |
556 | and <varname>w</varname> may be used to | |
557 | specify a short string that is written to the | |
849958d1 | 558 | file, suffixed by a newline. For |
8d0e0ddd | 559 | <varname>C</varname>, specifies the source file |
ebf4e801 MW |
560 | or directory. For <varname>t</varname> determines |
561 | extended attributes to be set. Ignored for all other lines.</para> | |
468d726b LP |
562 | </refsect2> |
563 | ||
4149f86d BP |
564 | </refsect1> |
565 | ||
566 | <refsect1> | |
567 | <title>Example</title> | |
568 | <example> | |
569 | <title>/etc/tmpfiles.d/screen.conf example</title> | |
570 | <para><command>screen</command> needs two directories created at boot with specific modes and ownership.</para> | |
571 | ||
41a55c46 | 572 | <programlisting>d /run/screens 1777 root root 10d |
ebf4e801 MW |
573 | d /run/uscreens 0755 root root 10d12h |
574 | t /run/screen - - - - user.name="John Smith" security.SMACK64=screen</programlisting> | |
4149f86d | 575 | </example> |
1e444481 LN |
576 | <example> |
577 | <title>/etc/tmpfiles.d/abrt.conf example</title> | |
578 | <para><command>abrt</command> needs a directory created at boot with specific mode and ownership and its content should be preserved.</para> | |
579 | ||
580 | <programlisting>d /var/tmp/abrt 0755 abrt abrt | |
581 | x /var/tmp/abrt/*</programlisting> | |
582 | </example> | |
4149f86d BP |
583 | </refsect1> |
584 | ||
585 | <refsect1> | |
586 | <title>See Also</title> | |
587 | <para> | |
522d4a49 | 588 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, |
75945bad | 589 | <citerefentry><refentrytitle>systemd-tmpfiles</refentrytitle><manvolnum>8</manvolnum></citerefentry>, |
e66cf1a3 LP |
590 | <citerefentry><refentrytitle>systemd-delta</refentrytitle><manvolnum>1</manvolnum></citerefentry>, |
591 | <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
4149f86d BP |
592 | </para> |
593 | </refsect1> | |
594 | ||
595 | </refentry> |