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1 | <?xml version="1.0"?> |
2 | <!--*-nxml-*--> | |
12b42c76 | 3 | <!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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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 | |
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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 | |
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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 | ||
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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> | |
45 | <refpurpose>Configuration for creation, deletion and cleaning of | |
46 | volatile and temporary files</refpurpose> | |
47 | </refnamediv> | |
48 | ||
49 | <refsynopsisdiv> | |
50 | <para><filename>/etc/tmpfiles.d/*.conf</filename></para> | |
51 | <para><filename>/run/tmpfiles.d/*.conf</filename></para> | |
52 | <para><filename>/usr/lib/tmpfiles.d/*.conf</filename></para> | |
53 | </refsynopsisdiv> | |
54 | ||
55 | <refsect1> | |
56 | <title>Description</title> | |
57 | ||
58 | <para><command>systemd-tmpfiles</command> uses the configuration | |
59 | files from the above directories to describe the creation, | |
60 | cleaning and removal of volatile and temporary files and | |
61 | directories which usually reside in directories such as | |
62 | <filename>/run</filename> or <filename>/tmp</filename>.</para> | |
63 | ||
64 | <para>Volatile and temporary files and directories are those | |
65 | located in <filename>/run</filename> (and its alias | |
66 | <filename>/var/run</filename>), <filename>/tmp</filename>, | |
67 | <filename>/var/tmp</filename>, the API file systems such as | |
68 | <filename>/sys</filename> or <filename>/proc</filename>, as well | |
69 | as some other directories below <filename>/var</filename>.</para> | |
70 | ||
71 | <para>System daemons frequently require private runtime | |
72 | directories below <filename>/run</filename> to place communication | |
73 | sockets and similar in. For these, consider declaring them in | |
74 | their unit files using <varname>RuntimeDirectory=</varname> (see | |
75 | <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
76 | for details), if this is feasible.</para> | |
77 | </refsect1> | |
78 | ||
79 | <refsect1> | |
80 | <title>Configuration Format</title> | |
81 | ||
82 | <para>Each configuration file shall be named in the style of | |
83 | <filename><replaceable>package</replaceable>.conf</filename> or | |
84 | <filename><replaceable>package</replaceable>-<replaceable>part</replaceable>.conf</filename>. | |
85 | The second variant should be used when it is desirable to make it | |
86 | easy to override just this part of configuration.</para> | |
87 | ||
88 | <para>Files in <filename>/etc/tmpfiles.d</filename> override files | |
89 | with the same name in <filename>/usr/lib/tmpfiles.d</filename> and | |
90 | <filename>/run/tmpfiles.d</filename>. Files in | |
91 | <filename>/run/tmpfiles.d</filename> override files with the same | |
92 | name in <filename>/usr/lib/tmpfiles.d</filename>. Packages should | |
93 | install their configuration files in | |
94 | <filename>/usr/lib/tmpfiles.d</filename>. Files in | |
95 | <filename>/etc/tmpfiles.d</filename> are reserved for the local | |
96 | administrator, who may use this logic to override the | |
97 | configuration files installed by vendor packages. All | |
98 | configuration files are sorted by their filename in lexicographic | |
99 | order, regardless of which of the directories they reside in. If | |
100 | multiple files specify the same path, the entry in the file with | |
101 | the lexicographically earliest name will be applied. All other | |
102 | conflicting entries will be logged as errors. When two lines are | |
103 | prefix and suffix of each other, then the prefix is always | |
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104 | processed first, the suffix later. Lines that take globs are |
105 | applied after those accepting no globs. If multiple operations | |
106 | shall be applied on the same file (such as ACL, xattr, file | |
107 | attribute adjustments) these are always done in the same fixed | |
108 | order. Otherwise, the files/directories are processed in the order | |
109 | they are listed.</para> | |
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110 | |
111 | <para>If the administrator wants to disable a configuration file | |
112 | supplied by the vendor, the recommended way is to place a symlink | |
113 | to <filename>/dev/null</filename> in | |
114 | <filename>/etc/tmpfiles.d/</filename> bearing the same filename. | |
115 | </para> | |
116 | ||
117 | <para>The configuration format is one line per path containing | |
118 | type, path, mode, ownership, age, and argument fields:</para> | |
119 | ||
120 | <programlisting>#Type Path Mode UID GID Age Argument | |
121 | d /run/user 0755 root root 10d - | |
122 | L /tmp/foobar - - - - /dev/null</programlisting> | |
123 | ||
657cf7f4 | 124 | <para>Fields may be enclosed within quotes and contain C-style escapes.</para> |
125 | ||
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126 | <refsect2> |
127 | <title>Type</title> | |
128 | ||
129 | <para>The type consists of a single letter and optionally an | |
130 | exclamation mark.</para> | |
131 | ||
132 | <para>The following line types are understood:</para> | |
133 | ||
134 | <variablelist> | |
135 | <varlistentry> | |
136 | <term><varname>f</varname></term> | |
137 | <listitem><para>Create a file if it does not exist yet. If | |
138 | the argument parameter is given, it will be written to the | |
6a9171d2 | 139 | file. Does not follow symlinks.</para></listitem> |
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140 | </varlistentry> |
141 | ||
142 | <varlistentry> | |
143 | <term><varname>F</varname></term> | |
144 | <listitem><para>Create or truncate a file. If the argument | |
6a9171d2 | 145 | parameter is given, it will be written to the file. Does not follow symlinks.</para> |
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146 | </listitem> |
147 | </varlistentry> | |
148 | ||
149 | <varlistentry> | |
150 | <term><varname>w</varname></term> | |
151 | <listitem><para>Write the argument parameter to a file, if | |
152 | the file exists. Lines of this type accept shell-style | |
153 | globs in place of normal path names. The argument parameter | |
154 | will be written without a trailing newline. C-style | |
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155 | backslash escapes are interpreted. Follows |
156 | symlinks.</para></listitem> | |
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157 | </varlistentry> |
158 | ||
159 | <varlistentry> | |
160 | <term><varname>d</varname></term> | |
161 | <listitem><para>Create a directory if it does not exist yet. | |
162 | </para></listitem> | |
163 | </varlistentry> | |
164 | ||
165 | <varlistentry> | |
166 | <term><varname>D</varname></term> | |
167 | <listitem><para>Create or empty a directory.</para></listitem> | |
168 | </varlistentry> | |
169 | ||
170 | <varlistentry> | |
171 | <term><varname>v</varname></term> | |
172 | <listitem><para>Create a subvolume if the path does not | |
173 | exist yet and the file system supports this | |
174 | (btrfs). Otherwise create a normal directory, in the same | |
175 | way as <varname>d</varname>.</para></listitem> | |
176 | </varlistentry> | |
177 | ||
178 | <varlistentry> | |
179 | <term><varname>p</varname></term> | |
180 | <term><varname>p+</varname></term> | |
181 | <listitem><para>Create a named pipe (FIFO) if it does not | |
182 | exist yet. If suffixed with <varname>+</varname> and a file | |
183 | already exists where the pipe is to be created, it will be | |
184 | removed and be replaced by the pipe.</para></listitem> | |
185 | </varlistentry> | |
186 | ||
187 | <varlistentry> | |
188 | <term><varname>L</varname></term> | |
189 | <term><varname>L+</varname></term> | |
190 | <listitem><para>Create a symlink if it does not exist | |
191 | yet. If suffixed with <varname>+</varname> and a file | |
192 | already exists where the symlink is to be created, it will | |
193 | be removed and be replaced by the symlink. If the argument | |
194 | is omitted, symlinks to files with the same name residing in | |
195 | the directory <filename>/usr/share/factory/</filename> are | |
196 | created.</para></listitem> | |
197 | </varlistentry> | |
198 | ||
199 | <varlistentry> | |
200 | <term><varname>c</varname></term> | |
201 | <term><varname>c+</varname></term> | |
202 | <listitem><para>Create a character device node if it does | |
203 | not exist yet. If suffixed with <varname>+</varname> and a | |
204 | file already exists where the device node is to be created, | |
205 | it will be removed and be replaced by the device node. It is | |
206 | recommended to suffix this entry with an exclamation mark to | |
207 | only create static device nodes at boot, as udev will not | |
208 | manage static device nodes that are created at runtime. | |
209 | </para></listitem> | |
210 | </varlistentry> | |
211 | ||
212 | <varlistentry> | |
213 | <term><varname>b</varname></term> | |
214 | <term><varname>b+</varname></term> | |
215 | <listitem><para>Create a block device node if it does not | |
216 | exist yet. If suffixed with <varname>+</varname> and a file | |
217 | already exists where the device node is to be created, it | |
218 | will be removed and be replaced by the device node. It is | |
219 | recommended to suffix this entry with an exclamation mark to | |
220 | only create static device nodes at boot, as udev will not | |
221 | manage static device nodes that are created at runtime. | |
222 | </para></listitem> | |
223 | </varlistentry> | |
224 | ||
225 | <varlistentry> | |
226 | <term><varname>C</varname></term> | |
227 | <listitem><para>Recursively copy a file or directory, if the | |
228 | destination files or directories do not exist yet. Note that | |
229 | this command will not descend into subdirectories if the | |
230 | destination directory already exists. Instead, the entire | |
231 | copy operation is skipped. If the argument is omitted, files | |
232 | from the source directory | |
233 | <filename>/usr/share/factory/</filename> with the same name | |
6a9171d2 | 234 | are copied. Does not follow symlinks.</para></listitem> |
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235 | </varlistentry> |
236 | ||
237 | <varlistentry> | |
238 | <term><varname>x</varname></term> | |
239 | <listitem><para>Ignore a path during cleaning. Use this type | |
240 | to exclude paths from clean-up as controlled with the Age | |
241 | parameter. Note that lines of this type do not influence the | |
242 | effect of <varname>r</varname> or <varname>R</varname> | |
50d9e46d | 243 | lines. Lines of this type accept shell-style globs in place |
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244 | of normal path names. </para></listitem> |
245 | </varlistentry> | |
246 | ||
247 | <varlistentry> | |
248 | <term><varname>X</varname></term> | |
249 | <listitem><para>Ignore a path during cleaning. Use this type | |
250 | to exclude paths from clean-up as controlled with the Age | |
251 | parameter. Unlike <varname>x</varname>, this parameter will | |
252 | not exclude the content if path is a directory, but only | |
253 | directory itself. Note that lines of this type do not | |
254 | influence the effect of <varname>r</varname> or | |
50d9e46d | 255 | <varname>R</varname> lines. Lines of this type accept |
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256 | shell-style globs in place of normal path names. |
257 | </para></listitem> | |
258 | </varlistentry> | |
259 | ||
260 | <varlistentry> | |
261 | <term><varname>r</varname></term> | |
262 | <listitem><para>Remove a file or directory if it exists. | |
263 | This may not be used to remove non-empty directories, use | |
264 | <varname>R</varname> for that. Lines of this type accept | |
265 | shell-style globs in place of normal path | |
6a9171d2 | 266 | names. Does not follow symlinks.</para></listitem> |
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267 | </varlistentry> |
268 | ||
269 | <varlistentry> | |
270 | <term><varname>R</varname></term> | |
271 | <listitem><para>Recursively remove a path and all its | |
272 | subdirectories (if it is a directory). Lines of this type | |
273 | accept shell-style globs in place of normal path | |
6a9171d2 | 274 | names. Does not follow symlinks.</para></listitem> |
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275 | </varlistentry> |
276 | ||
277 | <varlistentry> | |
278 | <term><varname>z</varname></term> | |
279 | <listitem><para>Adjust the access mode, group and user, and | |
280 | restore the SELinux security context of a file or directory, | |
281 | if it exists. Lines of this type accept shell-style globs in | |
6a9171d2 | 282 | place of normal path names. Does not follow symlinks.</para></listitem> |
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283 | </varlistentry> |
284 | ||
285 | <varlistentry> | |
286 | <term><varname>Z</varname></term> | |
287 | <listitem><para>Recursively set the access mode, group and | |
288 | user, and restore the SELinux security context of a file or | |
289 | directory if it exists, as well as of its subdirectories and | |
290 | the files contained therein (if applicable). Lines of this | |
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291 | type accept shell-style globs in place of normal path |
292 | names. Does not follow symlinks. </para></listitem> | |
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293 | </varlistentry> |
294 | ||
295 | <varlistentry> | |
296 | <term><varname>t</varname></term> | |
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297 | <listitem><para>Set extended attributes. Lines of this type |
298 | accept shell-style globs in place of normal path names. | |
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299 | This can be useful for setting SMACK labels. Does not follow |
300 | symlinks.</para></listitem> | |
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301 | </varlistentry> |
302 | ||
303 | <varlistentry> | |
304 | <term><varname>T</varname></term> | |
305 | <listitem><para>Recursively set extended attributes. Lines | |
306 | of this type accept shell-style globs in place of normal | |
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307 | path names. This can be useful for setting SMACK |
308 | labels. Does not follow symlinks. </para></listitem> | |
302fbdf2 | 309 | </varlistentry> |
f8eeeaf9 | 310 | |
fa3f5fd2 GB |
311 | <varlistentry> |
312 | <term><varname>h</varname></term> | |
313 | <listitem><para>Set file/directory attributes. Lines of this type | |
314 | accept shell-style globs in place of normal path names.</para> | |
315 | ||
1ae705fb LP |
316 | <para>The format of the argument field is |
317 | <varname>[+-=][aAcCdDeijsStTu] </varname>. The prefix | |
318 | <varname>+</varname> (the default one) causes the | |
fa3f5fd2 | 319 | attribute(s) to be added; <varname>-</varname> causes the |
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320 | attribute(s) to be removed; <varname>=</varname> causes the |
321 | attributes to set exactly as the following letters. The | |
322 | letters <literal>aAcCdDeijsStTu</literal> select the new | |
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323 | attributes for the files, see |
324 | <citerefentry><refentrytitle>chattr</refentrytitle> | |
325 | <manvolnum>1</manvolnum></citerefentry> for further information. | |
326 | </para> | |
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327 | <para>Passing only <varname>=</varname> as argument resets |
328 | all the file attributes listed above. It has to be pointed | |
329 | out that the <varname>=</varname> prefix, limits itself to | |
330 | the attributes corresponding to the letters listed here. All | |
331 | other attributes will be left untouched. Does not follow | |
332 | symlinks.</para> | |
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333 | </listitem> |
334 | </varlistentry> | |
335 | ||
336 | <varlistentry> | |
337 | <term><varname>H</varname></term> | |
338 | <listitem><para>Recursively set file/directory attributes. Lines | |
339 | of this type accept shell-style globs in place of normal | |
6a9171d2 | 340 | path names. Does not follow symlinks. |
fa3f5fd2 GB |
341 | </para></listitem> |
342 | </varlistentry> | |
343 | ||
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344 | <varlistentry> |
345 | <term><varname>a</varname></term> | |
50d9e46d ZJS |
346 | <term><varname>a+</varname></term> |
347 | <listitem><para>Set POSIX ACLs (access control lists). If | |
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348 | suffixed with <varname>+</varname>, specified entries will |
349 | be added to the existing set. | |
350 | <command>systemd-tmpfiles</command> will automatically add | |
351 | the required base entries for user and group based on the | |
352 | access mode of the file, unless base entries already exist | |
353 | or are explictly specified. The mask will be added if not | |
354 | specified explicitly or already present. Lines of this type | |
355 | accept shell-style globs in place of normal path names. This | |
356 | can be useful for allowing additional access to certain | |
6a9171d2 | 357 | files. Does not follow symlinks.</para></listitem> |
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358 | </varlistentry> |
359 | ||
360 | <varlistentry> | |
361 | <term><varname>A</varname></term> | |
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362 | <term><varname>A+</varname></term> |
363 | <listitem><para>Same as <varname>a</varname> and | |
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364 | <varname>a+</varname>, but recursive. Does not follow |
365 | symlinks.</para></listitem> | |
f8eeeaf9 | 366 | </varlistentry> |
302fbdf2 ZJS |
367 | </variablelist> |
368 | ||
369 | <para>If the exclamation mark is used, this line is only safe of | |
370 | execute during boot, and can break a running system. Lines | |
371 | without the exclamation mark are presumed to be safe to execute | |
372 | at any time, e.g. on package upgrades. | |
373 | <command>systemd-tmpfiles</command> will execute line with an | |
374 | exclamation mark only if option <option>--boot</option> is | |
375 | given.</para> | |
376 | ||
377 | <para>For example: | |
378 | <programlisting># Make sure these are created by default so that nobody else can | |
379 | d /tmp/.X11-unix 1777 root root 10d | |
380 | ||
381 | # Unlink the X11 lock files | |
382 | r! /tmp/.X[0-9]*-lock</programlisting> | |
383 | The second line in contrast to the first one would break a | |
384 | running system, and will only be executed with | |
385 | <option>--boot</option>.</para> | |
386 | </refsect2> | |
387 | ||
388 | <refsect2> | |
389 | <title>Path</title> | |
390 | ||
391 | <para>The file system path specification supports simple | |
392 | specifier expansion. The following expansions are | |
393 | understood:</para> | |
394 | ||
395 | <table> | |
396 | <title>Specifiers available</title> | |
397 | <tgroup cols='3' align='left' colsep='1' rowsep='1'> | |
398 | <colspec colname="spec" /> | |
399 | <colspec colname="mean" /> | |
400 | <colspec colname="detail" /> | |
401 | <thead> | |
402 | <row> | |
403 | <entry>Specifier</entry> | |
404 | <entry>Meaning</entry> | |
405 | <entry>Details</entry> | |
406 | </row> | |
407 | </thead> | |
408 | <tbody> | |
409 | <row> | |
410 | <entry><literal>%m</literal></entry> | |
411 | <entry>Machine ID</entry> | |
412 | <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> | |
413 | </row> | |
414 | <row> | |
415 | <entry><literal>%b</literal></entry> | |
416 | <entry>Boot ID</entry> | |
417 | <entry>The boot ID of the running system, formatted as string. See <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry> for more information.</entry> | |
418 | </row> | |
419 | <row> | |
420 | <entry><literal>%H</literal></entry> | |
421 | <entry>Host name</entry> | |
422 | <entry>The hostname of the running system.</entry> | |
423 | </row> | |
424 | <row> | |
425 | <entry><literal>%v</literal></entry> | |
426 | <entry>Kernel release</entry> | |
427 | <entry>Identical to <command>uname -r</command> output.</entry> | |
428 | </row> | |
429 | <row> | |
430 | <entry><literal>%%</literal></entry> | |
431 | <entry>Escaped %</entry> | |
432 | <entry>Single percent sign.</entry> | |
433 | </row> | |
434 | </tbody> | |
435 | </tgroup> | |
436 | </table> | |
437 | </refsect2> | |
438 | ||
439 | <refsect2> | |
440 | <title>Mode</title> | |
441 | ||
442 | <para>The file access mode to use when creating this file or | |
443 | directory. If omitted or when set to <literal>-</literal>, the | |
444 | default is used: 0755 for directories, 0644 for all other file | |
445 | objects. For <varname>z</varname>, <varname>Z</varname> lines, | |
446 | if omitted or when set to <literal>-</literal>, the file access | |
447 | mode will not be modified. This parameter is ignored for | |
448 | <varname>x</varname>, <varname>r</varname>, | |
f8eeeaf9 ZJS |
449 | <varname>R</varname>, <varname>L</varname>, <varname>t</varname>, |
450 | and <varname>a</varname> lines.</para> | |
302fbdf2 ZJS |
451 | |
452 | <para>Optionally, if prefixed with <literal>~</literal>, the | |
453 | access mode is masked based on the already set access bits for | |
454 | existing file or directories: if the existing file has all | |
455 | executable bits unset, all executable bits are removed from the | |
456 | new access mode, too. Similarly, if all read bits are removed | |
457 | from the old access mode, they will be removed from the new | |
458 | access mode too, and if all write bits are removed, they will be | |
459 | removed from the new access mode too. In addition, the | |
460 | sticky/SUID/SGID bit is removed unless applied to a | |
461 | directory. This functionality is particularly useful in | |
462 | conjunction with <varname>Z</varname>.</para> | |
463 | </refsect2> | |
464 | ||
465 | <refsect2> | |
466 | <title>UID, GID</title> | |
467 | ||
468 | <para>The user and group to use for this file or directory. This | |
469 | may either be a numeric user/group ID or a user or group | |
470 | name. If omitted or when set to <literal>-</literal>, the | |
471 | default 0 (root) is used. For <varname>z</varname>, | |
f8eeeaf9 ZJS |
472 | <varname>Z</varname> lines, when omitted or when set to |
473 | <literal>-</literal>, the file ownership will not be | |
474 | modified. These parameters are ignored for <varname>x</varname>, | |
475 | <varname>r</varname>, <varname>R</varname>, | |
476 | <varname>L</varname>, <varname>t</varname>, and | |
477 | <varname>a</varname> lines.</para> | |
302fbdf2 ZJS |
478 | </refsect2> |
479 | ||
480 | <refsect2> | |
481 | <title>Age</title> | |
482 | <para>The date field, when set, is used to decide what files to | |
483 | delete when cleaning. If a file or directory is older than the | |
484 | current time minus the age field, it is deleted. The field | |
485 | format is a series of integers each followed by one of the | |
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486 | following postfixes for the respective time units: |
487 | <constant>s</constant>, | |
488 | <constant>m</constant> or <constant>min</constant>, | |
489 | <constant>h</constant>, | |
490 | <constant>d</constant>, | |
491 | <constant>w</constant>, | |
492 | <constant>ms</constant>, | |
493 | <constant>us</constant>, | |
494 | respectively meaning seconds, minutes, hours, days, weeks, | |
495 | milliseconds, and microseconds. Full names of the time units can | |
496 | be used too. | |
497 | </para> | |
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498 | |
499 | <para>If multiple integers and units are specified, the time | |
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500 | values are summed. If an integer is given without a unit, |
501 | <constant>s</constant> is assumed. | |
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502 | </para> |
503 | ||
504 | <para>When the age is set to zero, the files are cleaned | |
505 | unconditionally.</para> | |
506 | ||
507 | <para>The age field only applies to lines | |
508 | starting with <varname>d</varname>, | |
509 | <varname>D</varname>, and | |
510 | <varname>x</varname>. If omitted or set to | |
511 | <literal>-</literal>, no automatic clean-up is | |
512 | done.</para> | |
513 | ||
514 | <para>If the age field starts with a tilde character | |
515 | <literal>~</literal>, the clean-up is only applied to files and | |
516 | directories one level inside the directory specified, but not | |
517 | the files and directories immediately inside it.</para> | |
518 | </refsect2> | |
519 | ||
520 | <refsect2> | |
521 | <title>Argument</title> | |
522 | ||
523 | <para>For <varname>L</varname> lines determines the destination | |
524 | path of the symlink. For <varname>c</varname>, | |
525 | <varname>b</varname> determines the major/minor of the device | |
526 | node, with major and minor formatted as integers, separated by | |
527 | <literal>:</literal>, e.g. <literal>1:3</literal>. For | |
528 | <varname>f</varname>, <varname>F</varname>, and | |
529 | <varname>w</varname> may be used to specify a short string that | |
530 | is written to the file, suffixed by a newline. For | |
531 | <varname>C</varname>, specifies the source file or | |
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532 | directory. For <varname>t</varname>, <varname>T</varname> |
533 | determines extended attributes to be set. For | |
534 | <varname>a</varname>, <varname>A</varname> determines ACL | |
535 | attributes to be set. For <varname>h</varname>, | |
536 | <varname>H</varname> determines the file attributes to | |
537 | set. Ignored for all other lines.</para> | |
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538 | </refsect2> |
539 | ||
540 | </refsect1> | |
541 | ||
542 | <refsect1> | |
543 | <title>Example</title> | |
544 | <example> | |
545 | <title>/etc/tmpfiles.d/screen.conf example</title> | |
546 | <para><command>screen</command> needs two directories created at | |
547 | boot with specific modes and ownership.</para> | |
548 | ||
549 | <programlisting>d /run/screens 1777 root root 10d | |
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550 | d /run/uscreens 0755 root root 10d12h |
551 | t /run/screen - - - - user.name="John Smith" security.SMACK64=screen</programlisting> | |
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552 | </example> |
553 | <example> | |
554 | <title>/etc/tmpfiles.d/abrt.conf example</title> | |
555 | <para><command>abrt</command> needs a directory created at boot with specific mode and ownership and its content should be preserved.</para> | |
556 | ||
557 | <programlisting>d /var/tmp/abrt 0755 abrt abrt | |
bd110089 | 558 | x /var/tmp/abrt/*</programlisting> |
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559 | </example> |
560 | </refsect1> | |
561 | ||
562 | <refsect1> | |
563 | <title>See Also</title> | |
564 | <para> | |
565 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
566 | <citerefentry><refentrytitle>systemd-tmpfiles</refentrytitle><manvolnum>8</manvolnum></citerefentry>, | |
567 | <citerefentry><refentrytitle>systemd-delta</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
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568 | <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>, |
569 | <citerefentry project='man-pages'><refentrytitle>attr</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
570 | <citerefentry project='man-pages'><refentrytitle>getfattr</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
571 | <citerefentry project='man-pages'><refentrytitle>setfattr</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
572 | <citerefentry project='man-pages'><refentrytitle>setfacl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
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573 | <citerefentry project='man-pages'><refentrytitle>getfacl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, |
574 | <citerefentry project='man-pages'><refentrytitle>chattr</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
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575 | </para> |
576 | </refsect1> | |
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577 | |
578 | </refentry> |