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3802a3d3 | 1 | <?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*--> |
7874bcd6 | 2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" |
681eb9cf FB |
3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [ |
4 | <!ENTITY % entities SYSTEM "custom-entities.ent" > | |
5 | %entities; | |
6 | ]> | |
7874bcd6 LP |
7 | |
8 | <!-- | |
b975b0d5 | 9 | This file is part of systemd. |
7874bcd6 | 10 | |
b975b0d5 | 11 | Copyright 2010 Lennart Poettering |
7874bcd6 | 12 | |
b975b0d5 ZJS |
13 | systemd is free software; you can redistribute it and/or modify it |
14 | under the terms of the GNU Lesser General Public License as published by | |
15 | the Free Software Foundation; either version 2.1 of the License, or | |
16 | (at your option) any later version. | |
7874bcd6 | 17 | |
b975b0d5 ZJS |
18 | systemd is distributed in the hope that it will be useful, but |
19 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
21 | Lesser General Public License for more details. | |
7874bcd6 | 22 | |
b975b0d5 ZJS |
23 | You should have received a copy of the GNU Lesser General Public License |
24 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
7874bcd6 LP |
25 | --> |
26 | ||
21ac6ff1 ZJS |
27 | <refentry id="systemctl" |
28 | xmlns:xi="http://www.w3.org/2001/XInclude"> | |
7874bcd6 | 29 | |
4a6022f0 ZJS |
30 | <refentryinfo> |
31 | <title>systemctl</title> | |
32 | <productname>systemd</productname> | |
33 | ||
34 | <authorgroup> | |
35 | <author> | |
36 | <contrib>Developer</contrib> | |
37 | <firstname>Lennart</firstname> | |
38 | <surname>Poettering</surname> | |
39 | <email>lennart@poettering.net</email> | |
40 | </author> | |
41 | </authorgroup> | |
42 | </refentryinfo> | |
43 | ||
44 | <refmeta> | |
45 | <refentrytitle>systemctl</refentrytitle> | |
46 | <manvolnum>1</manvolnum> | |
47 | </refmeta> | |
48 | ||
49 | <refnamediv> | |
50 | <refname>systemctl</refname> | |
51 | <refpurpose>Control the systemd system and service manager</refpurpose> | |
52 | </refnamediv> | |
53 | ||
54 | <refsynopsisdiv> | |
55 | <cmdsynopsis> | |
56 | <command>systemctl</command> | |
57 | <arg choice="opt" rep="repeat">OPTIONS</arg> | |
58 | <arg choice="plain">COMMAND</arg> | |
59 | <arg choice="opt" rep="repeat">NAME</arg> | |
60 | </cmdsynopsis> | |
61 | </refsynopsisdiv> | |
62 | ||
63 | <refsect1> | |
64 | <title>Description</title> | |
65 | ||
a4390b6b LP |
66 | <para><command>systemctl</command> may be used to introspect and |
67 | control the state of the <literal>systemd</literal> system and | |
68 | service manager. Please refer to | |
4a6022f0 | 69 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry> |
a4390b6b LP |
70 | for an introduction into the basic concepts and functionality this |
71 | tool manages.</para> | |
4a6022f0 ZJS |
72 | </refsect1> |
73 | ||
74 | <refsect1> | |
75 | <title>Options</title> | |
76 | ||
77 | <para>The following options are understood:</para> | |
78 | ||
79 | <variablelist> | |
4a6022f0 ZJS |
80 | <varlistentry> |
81 | <term><option>-t</option></term> | |
82 | <term><option>--type=</option></term> | |
83 | ||
84 | <listitem> | |
e9dd9f95 | 85 | <para>The argument should be a comma-separated list of unit |
20b3f379 | 86 | types such as <option>service</option> and |
9b9b3d36 MW |
87 | <option>socket</option>. |
88 | </para> | |
20b3f379 ZJS |
89 | |
90 | <para>If one of the arguments is a unit type, when listing | |
7b870f60 | 91 | units, limit display to certain unit types. Otherwise, units |
4a6022f0 ZJS |
92 | of all types will be shown.</para> |
93 | ||
20b3f379 | 94 | <para>As a special case, if one of the arguments is |
4a6022f0 ZJS |
95 | <option>help</option>, a list of allowed values will be |
96 | printed and the program will exit.</para> | |
97 | </listitem> | |
98 | </varlistentry> | |
99 | ||
9b9b3d36 MW |
100 | <varlistentry> |
101 | <term><option>--state=</option></term> | |
102 | ||
103 | <listitem> | |
036359ba LP |
104 | <para>The argument should be a comma-separated list of unit |
105 | LOAD, SUB, or ACTIVE states. When listing units, show only | |
106 | those in specified states. Use <option>--state=failed</option> | |
107 | to show only failed units.</para> | |
9b9b3d36 MW |
108 | </listitem> |
109 | </varlistentry> | |
110 | ||
4a6022f0 ZJS |
111 | <varlistentry> |
112 | <term><option>-p</option></term> | |
113 | <term><option>--property=</option></term> | |
114 | ||
115 | <listitem> | |
54c31a79 LP |
116 | <para>When showing unit/job/manager properties with the |
117 | <command>show</command> command, limit display to certain | |
7b870f60 | 118 | properties as specified as argument. If not specified, all |
54c31a79 | 119 | set properties are shown. The argument should be a |
d2bbca68 | 120 | comma-separated list of property names, such as |
7b870f60 | 121 | <literal>MainPID</literal>. If specified more than once, all |
033a842c | 122 | properties with the specified names are shown.</para> |
4a6022f0 ZJS |
123 | </listitem> |
124 | </varlistentry> | |
125 | ||
126 | <varlistentry> | |
127 | <term><option>-a</option></term> | |
128 | <term><option>--all</option></term> | |
129 | ||
130 | <listitem> | |
a5e4972c LP |
131 | <para>When listing units, show all loaded units, regardless |
132 | of their state, including inactive units. When showing | |
4a6022f0 ZJS |
133 | unit/job/manager properties, show all properties regardless |
134 | whether they are set or not.</para> | |
a5e4972c LP |
135 | <para>To list all units installed on the system, use the |
136 | <command>list-unit-files</command> command instead.</para> | |
4a6022f0 ZJS |
137 | </listitem> |
138 | </varlistentry> | |
139 | ||
1238ee09 LP |
140 | <varlistentry> |
141 | <term><option>-r</option></term> | |
142 | <term><option>--recursive</option></term> | |
143 | ||
144 | <listitem> | |
145 | <para>When listing units, also show units of local | |
146 | containers. Units of local containers will be prefixed with | |
147 | the container name, separated by a single colon character | |
148 | (<literal>:</literal>).</para> | |
149 | </listitem> | |
150 | </varlistentry> | |
151 | ||
afba4199 ZJS |
152 | <varlistentry> |
153 | <term><option>--reverse</option></term> | |
154 | ||
155 | <listitem> | |
156 | <para>Show reverse dependencies between units with | |
f6375e83 ZJS |
157 | <command>list-dependencies</command>, i.e. follow |
158 | dependencies of type <varname>WantedBy=</varname>, | |
159 | <varname>RequiredBy=</varname>, | |
ff9b60f3 | 160 | <varname>RequiredByOverridable=</varname>, |
f6375e83 ZJS |
161 | <varname>PartOf=</varname>, <varname>BoundBy=</varname>, |
162 | instead of <varname>Wants=</varname> and similar. | |
afba4199 ZJS |
163 | </para> |
164 | </listitem> | |
165 | </varlistentry> | |
166 | ||
167 | <varlistentry> | |
168 | <term><option>--after</option></term> | |
9029f642 JSJ |
169 | |
170 | <listitem> | |
171 | <para>With <command>list-dependencies</command>, show the | |
172 | units that are ordered before the specified unit. In other | |
f6375e83 ZJS |
173 | words, recursively list units following the |
174 | <varname>After=</varname> dependency.</para> | |
175 | ||
176 | <para>Note that any <varname>After=</varname> dependency is | |
177 | automatically mirrored to create a | |
178 | <varname>Before=</varname> dependency. Temporal dependencies | |
922d948b | 179 | may be specified explicitly, but are also created implicitly |
f6375e83 ZJS |
180 | for units which are <varname>WantedBy=</varname> targets |
181 | (see | |
182 | <citerefentry><refentrytitle>systemd.target</refentrytitle><manvolnum>5</manvolnum></citerefentry>), | |
183 | and as a result of other directives (for example | |
184 | <varname>RequiresMountsFor=</varname>). Both explicitly | |
185 | and implicitly introduced dependencies are shown with | |
186 | <command>list-dependencies</command>.</para> | |
9029f642 JSJ |
187 | </listitem> |
188 | </varlistentry> | |
189 | ||
190 | <varlistentry> | |
afba4199 ZJS |
191 | <term><option>--before</option></term> |
192 | ||
193 | <listitem> | |
9029f642 JSJ |
194 | <para>With <command>list-dependencies</command>, show the |
195 | units that are ordered after the specified unit. In other | |
f6375e83 ZJS |
196 | words, recursively list units following the |
197 | <varname>Before=</varname> dependency.</para> | |
afba4199 ZJS |
198 | </listitem> |
199 | </varlistentry> | |
200 | ||
4a6022f0 | 201 | <varlistentry> |
98a6e132 | 202 | <term><option>-l</option></term> |
4a6022f0 ZJS |
203 | <term><option>--full</option></term> |
204 | ||
205 | <listitem> | |
69d918b0 ZJS |
206 | <para>Do not ellipsize unit names, process tree entries, |
207 | journal output, or truncate unit descriptions in the output | |
208 | of <command>status</command>, <command>list-units</command>, | |
209 | <command>list-jobs</command>, and | |
210 | <command>list-timers</command>.</para> | |
4a6022f0 ZJS |
211 | </listitem> |
212 | </varlistentry> | |
213 | ||
991f2a39 ZJS |
214 | <varlistentry> |
215 | <term><option>--show-types</option></term> | |
216 | ||
217 | <listitem> | |
218 | <para>When showing sockets, show the type of the socket.</para> | |
219 | </listitem> | |
220 | </varlistentry> | |
221 | ||
23ade460 | 222 | <varlistentry> |
4dc5b821 | 223 | <term><option>--job-mode=</option></term> |
23ade460 MS |
224 | |
225 | <listitem> | |
e0e009c0 JE |
226 | <para>When queuing a new job, this option controls how to deal with |
227 | already queued jobs. It takes one of <literal>fail</literal>, | |
4dc5b821 LP |
228 | <literal>replace</literal>, |
229 | <literal>replace-irreversibly</literal>, | |
230 | <literal>isolate</literal>, | |
231 | <literal>ignore-dependencies</literal>, | |
232 | <literal>ignore-requirements</literal> or | |
233 | <literal>flush</literal>. Defaults to | |
234 | <literal>replace</literal>, except when the | |
235 | <command>isolate</command> command is used which implies the | |
236 | <literal>isolate</literal> job mode.</para> | |
237 | ||
238 | <para>If <literal>fail</literal> is specified and a requested | |
239 | operation conflicts with a pending job (more specifically: | |
240 | causes an already pending start job to be reversed into a stop | |
241 | job or vice versa), cause the operation to fail.</para> | |
242 | ||
243 | <para>If <literal>replace</literal> (the default) is | |
244 | specified, any conflicting pending job will be replaced, as | |
245 | necessary.</para> | |
246 | ||
247 | <para>If <literal>replace-irreversibly</literal> is specified, | |
248 | operate like <literal>replace</literal>, but also mark the new | |
249 | jobs as irreversible. This prevents future conflicting | |
9a92e77e DS |
250 | transactions from replacing these jobs (or even being enqueued |
251 | while the irreversible jobs are still pending). Irreversible | |
252 | jobs can still be cancelled using the <command>cancel</command> | |
253 | command.</para> | |
4dc5b821 LP |
254 | |
255 | <para><literal>isolate</literal> is only valid for start | |
256 | operations and causes all other units to be stopped when the | |
257 | specified unit is started. This mode is always used when the | |
258 | <command>isolate</command> command is used.</para> | |
259 | ||
260 | <para><literal>flush</literal> will cause all queued jobs to | |
261 | be canceled when the new job is enqueued.</para> | |
262 | ||
263 | <para>If <literal>ignore-dependencies</literal> is specified, | |
264 | then all unit dependencies are ignored for this new job and | |
265 | the operation is executed immediately. If passed, no required | |
266 | units of the unit passed will be pulled in, and no ordering | |
267 | dependencies will be honored. This is mostly a debugging and | |
268 | rescue tool for the administrator and should not be used by | |
269 | applications.</para> | |
270 | ||
271 | <para><literal>ignore-requirements</literal> is similar to | |
b040723e | 272 | <literal>ignore-dependencies</literal>, but only causes the |
4dc5b821 LP |
273 | requirement dependencies to be ignored, the ordering |
274 | dependencies will still be honoured.</para> | |
23ade460 | 275 | </listitem> |
4a6022f0 | 276 | |
4a6022f0 ZJS |
277 | </varlistentry> |
278 | ||
279 | <varlistentry> | |
280 | <term><option>-i</option></term> | |
281 | <term><option>--ignore-inhibitors</option></term> | |
282 | ||
283 | <listitem> | |
284 | <para>When system shutdown or a sleep state is requested, | |
285 | ignore inhibitor locks. Applications can establish inhibitor | |
286 | locks to avoid that certain important operations (such as CD | |
287 | burning or suchlike) are interrupted by system shutdown or a | |
288 | sleep state. Any user may take these locks and privileged | |
289 | users may override these locks. If any locks are taken, | |
290 | shutdown and sleep state requests will normally fail | |
494a6682 | 291 | (regardless of whether privileged or not) and a list of active locks |
7b870f60 JE |
292 | is printed. However, if <option>--ignore-inhibitors</option> |
293 | is specified, the locks are ignored and not printed, and the | |
4a6022f0 ZJS |
294 | operation attempted anyway, possibly requiring additional |
295 | privileges.</para> | |
296 | </listitem> | |
297 | </varlistentry> | |
298 | ||
299 | <varlistentry> | |
300 | <term><option>-q</option></term> | |
301 | <term><option>--quiet</option></term> | |
302 | ||
303 | <listitem> | |
304 | <para>Suppress output to standard output in | |
305 | <command>snapshot</command>, | |
306 | <command>is-active</command>, | |
307 | <command>is-failed</command>, | |
99813a19 LP |
308 | <command>is-enabled</command>, |
309 | <command>is-system-running</command>, | |
4a6022f0 ZJS |
310 | <command>enable</command> and |
311 | <command>disable</command>.</para> | |
312 | </listitem> | |
313 | </varlistentry> | |
314 | ||
315 | <varlistentry> | |
316 | <term><option>--no-block</option></term> | |
317 | ||
318 | <listitem> | |
319 | <para>Do not synchronously wait for the requested operation | |
7b870f60 | 320 | to finish. If this is not specified, the job will be |
4a6022f0 | 321 | verified, enqueued and <command>systemctl</command> will |
3d161f99 LP |
322 | wait until the unit's start-up is completed. By passing this |
323 | argument, it is only verified and enqueued.</para> | |
4a6022f0 ZJS |
324 | </listitem> |
325 | </varlistentry> | |
326 | ||
88ae7333 ZJS |
327 | <xi:include href="user-system-options.xml" xpointer="user" /> |
328 | <xi:include href="user-system-options.xml" xpointer="system" /> | |
4a6022f0 | 329 | |
036359ba LP |
330 | <!-- we do not document -failed here, as it has been made |
331 | redundant by -state=failed, which it predates. To keep | |
332 | things simple we only document the new switch, while | |
333 | keeping the old one around for compatibility only. --> | |
599b6322 | 334 | |
4a6022f0 ZJS |
335 | <varlistentry> |
336 | <term><option>--no-wall</option></term> | |
337 | ||
338 | <listitem> | |
7b870f60 | 339 | <para>Do not send wall message before halt, power-off, |
4a6022f0 ZJS |
340 | reboot.</para> |
341 | </listitem> | |
342 | </varlistentry> | |
343 | ||
344 | <varlistentry> | |
345 | <term><option>--global</option></term> | |
346 | ||
347 | <listitem> | |
348 | <para>When used with <command>enable</command> and | |
349 | <command>disable</command>, operate on the global user | |
350 | configuration directory, thus enabling or disabling a unit | |
351 | file globally for all future logins of all users.</para> | |
352 | </listitem> | |
353 | </varlistentry> | |
354 | ||
355 | <varlistentry> | |
356 | <term><option>--no-reload</option></term> | |
357 | ||
358 | <listitem> | |
359 | <para>When used with <command>enable</command> and | |
360 | <command>disable</command>, do not implicitly reload daemon | |
361 | configuration after executing the changes.</para> | |
362 | </listitem> | |
363 | </varlistentry> | |
364 | ||
365 | <varlistentry> | |
366 | <term><option>--no-ask-password</option></term> | |
367 | ||
368 | <listitem> | |
369 | <para>When used with <command>start</command> and related | |
370 | commands, disables asking for passwords. Background services | |
371 | may require input of a password or passphrase string, for | |
372 | example to unlock system hard disks or cryptographic | |
373 | certificates. Unless this option is specified and the | |
7b870f60 | 374 | command is invoked from a terminal, |
4a6022f0 ZJS |
375 | <command>systemctl</command> will query the user on the |
376 | terminal for the necessary secrets. Use this option to | |
7b870f60 | 377 | switch this behavior off. In this case, the password must be |
4a6022f0 ZJS |
378 | supplied by some other means (for example graphical password |
379 | agents) or the service might fail. This also disables | |
380 | querying the user for authentication for privileged | |
381 | operations.</para> | |
382 | </listitem> | |
4a6022f0 ZJS |
383 | </varlistentry> |
384 | ||
385 | <varlistentry> | |
386 | <term><option>--kill-who=</option></term> | |
387 | ||
388 | <listitem> | |
389 | <para>When used with <command>kill</command>, choose which | |
af7424af LP |
390 | processes to send a signal to. Must be one of |
391 | <option>main</option>, <option>control</option> or | |
392 | <option>all</option> to select whether to kill only the main | |
393 | process, the control process or all processes of the | |
394 | unit. The main process of the unit is the one that defines | |
395 | the life-time of it. A control process of a unit is one that | |
396 | is invoked by the manager to induce state changes of it. For | |
397 | example, all processes started due to the | |
398 | <varname>ExecStartPre=</varname>, | |
399 | <varname>ExecStop=</varname> or | |
400 | <varname>ExecReload=</varname> settings of service units are | |
401 | control processes. Note that there is only one control | |
402 | process per unit at a time, as only one state change is | |
403 | executed at a time. For services of type | |
b8bde116 | 404 | <varname>Type=forking</varname>, the initial process started |
af7424af LP |
405 | by the manager for <varname>ExecStart=</varname> is a |
406 | control process, while the process ultimately forked off by | |
407 | that one is then considered the main process of the unit (if | |
408 | it can be determined). This is different for service units | |
409 | of other types, where the process forked off by the manager | |
410 | for <varname>ExecStart=</varname> is always the main process | |
b8bde116 JE |
411 | itself. A service unit consists of zero or one main process, |
412 | zero or one control process plus any number of additional | |
af7424af | 413 | processes. Not all unit types manage processes of these |
b8bde116 | 414 | types however. For example, for mount units, control processes |
af7424af | 415 | are defined (which are the invocations of |
d31dd62b FB |
416 | <filename>&MOUNT_PATH;</filename> and |
417 | <filename>&UMOUNT_PATH;</filename>), but no main process | |
af7424af LP |
418 | is defined. If omitted, defaults to |
419 | <option>all</option>.</para> | |
4a6022f0 ZJS |
420 | </listitem> |
421 | ||
422 | </varlistentry> | |
423 | ||
424 | <varlistentry> | |
425 | <term><option>-s</option></term> | |
426 | <term><option>--signal=</option></term> | |
427 | ||
428 | <listitem> | |
429 | <para>When used with <command>kill</command>, choose which | |
430 | signal to send to selected processes. Must be one of the | |
05cc7267 | 431 | well known signal specifiers such as <constant>SIGTERM</constant>, <constant>SIGINT</constant> or |
7b870f60 | 432 | <constant>SIGSTOP</constant>. If omitted, defaults to |
4a6022f0 ZJS |
433 | <option>SIGTERM</option>.</para> |
434 | </listitem> | |
435 | </varlistentry> | |
436 | ||
437 | <varlistentry> | |
438 | <term><option>-f</option></term> | |
439 | <term><option>--force</option></term> | |
440 | ||
441 | <listitem> | |
442 | <para>When used with <command>enable</command>, overwrite | |
443 | any existing conflicting symlinks.</para> | |
444 | ||
445 | <para>When used with <command>halt</command>, | |
446 | <command>poweroff</command>, <command>reboot</command> or | |
7b870f60 | 447 | <command>kexec</command>, execute the selected operation |
4a6022f0 ZJS |
448 | without shutting down all units. However, all processes will |
449 | be killed forcibly and all file systems are unmounted or | |
450 | remounted read-only. This is hence a drastic but relatively | |
451 | safe option to request an immediate reboot. If | |
452 | <option>--force</option> is specified twice for these | |
453 | operations, they will be executed immediately without | |
1e89266b | 454 | terminating any processes or unmounting any file |
4a6022f0 ZJS |
455 | systems. Warning: specifying <option>--force</option> twice |
456 | with any of these operations might result in data | |
457 | loss.</para> | |
458 | </listitem> | |
459 | </varlistentry> | |
460 | ||
57ab2eab JS |
461 | <varlistentry> |
462 | <term><option>--now</option></term> | |
463 | ||
464 | <listitem> | |
465 | <para>When used with <command>enable</command>, the units | |
466 | will also be started. When used with <command>disable</command> or | |
467 | <command>mask</command>, the units will also be stopped. The start | |
468 | or stop operation is only carried out when the respective enable or | |
469 | disable operation has been successful.</para> | |
470 | </listitem> | |
471 | </varlistentry> | |
472 | ||
4a6022f0 ZJS |
473 | <varlistentry> |
474 | <term><option>--root=</option></term> | |
475 | ||
476 | <listitem> | |
477 | <para>When used with | |
478 | <command>enable</command>/<command>disable</command>/<command>is-enabled</command> | |
479 | (and related commands), use alternative root path when | |
480 | looking for unit files.</para> | |
481 | </listitem> | |
482 | ||
483 | </varlistentry> | |
484 | ||
485 | <varlistentry> | |
486 | <term><option>--runtime</option></term> | |
487 | ||
488 | <listitem> | |
a330b376 | 489 | <para>When used with <command>enable</command>, |
7d4fb3b1 | 490 | <command>disable</command>, <command>edit</command>, |
4a6022f0 | 491 | (and related commands), make changes only temporarily, so |
a330b376 | 492 | that they are lost on the next reboot. This will have the |
4a6022f0 ZJS |
493 | effect that changes are not made in subdirectories of |
494 | <filename>/etc</filename> but in <filename>/run</filename>, | |
495 | with identical immediate effects, however, since the latter | |
496 | is lost on reboot, the changes are lost too.</para> | |
a330b376 | 497 | |
494a6682 | 498 | <para>Similarly, when used with |
fbce1139 | 499 | <command>set-property</command>, make changes only |
a330b376 LP |
500 | temporarily, so that they are lost on the next |
501 | reboot.</para> | |
4a6022f0 ZJS |
502 | </listitem> |
503 | </varlistentry> | |
504 | ||
d309c1c3 LP |
505 | <varlistentry> |
506 | <term><option>--preset-mode=</option></term> | |
507 | ||
508 | <listitem> | |
509 | <para>Takes one of <literal>full</literal> (the default), | |
510 | <literal>enable-only</literal>, | |
8d0e0ddd | 511 | <literal>disable-only</literal>. When used with the |
d309c1c3 | 512 | <command>preset</command> or <command>preset-all</command> |
8d0e0ddd | 513 | commands, controls whether units shall be disabled and |
d309c1c3 LP |
514 | enabled according to the preset rules, or only enabled, or |
515 | only disabled.</para> | |
516 | </listitem> | |
517 | </varlistentry> | |
518 | ||
4a6022f0 ZJS |
519 | <varlistentry> |
520 | <term><option>-n</option></term> | |
521 | <term><option>--lines=</option></term> | |
522 | ||
523 | <listitem> | |
7b870f60 | 524 | <para>When used with <command>status</command>, controls the |
4a6022f0 ZJS |
525 | number of journal lines to show, counting from the most |
526 | recent ones. Takes a positive integer argument. Defaults to | |
527 | 10.</para> | |
528 | </listitem> | |
529 | </varlistentry> | |
530 | ||
531 | <varlistentry> | |
532 | <term><option>-o</option></term> | |
533 | <term><option>--output=</option></term> | |
534 | ||
535 | <listitem> | |
7b870f60 | 536 | <para>When used with <command>status</command>, controls the |
4a6022f0 | 537 | formatting of the journal entries that are shown. For the |
7b870f60 | 538 | available choices, see |
4a6022f0 ZJS |
539 | <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>. |
540 | Defaults to <literal>short</literal>.</para> | |
541 | </listitem> | |
542 | </varlistentry> | |
543 | ||
5bdf2243 JJ |
544 | <varlistentry> |
545 | <term><option>--firmware-setup</option></term> | |
546 | ||
547 | <listitem> | |
548 | <para>When used with the <command>reboot</command> command, | |
549 | indicate to the system's firmware to boot into setup | |
550 | mode. Note that this is currently only supported on some EFI | |
551 | systems and only if the system was booted in EFI | |
552 | mode.</para> | |
553 | </listitem> | |
554 | </varlistentry> | |
555 | ||
5d0c05e5 LN |
556 | <varlistentry> |
557 | <term><option>--plain</option></term> | |
558 | ||
559 | <listitem> | |
7b870f60 | 560 | <para>When used with <command>list-dependencies</command>, |
5d0c05e5 LN |
561 | the output is printed as a list instead of a tree.</para> |
562 | </listitem> | |
563 | </varlistentry> | |
564 | ||
4f50d2ef ZJS |
565 | <xi:include href="user-system-options.xml" xpointer="host" /> |
566 | <xi:include href="user-system-options.xml" xpointer="machine" /> | |
567 | ||
12f15e59 ZJS |
568 | <xi:include href="standard-options.xml" xpointer="no-pager" /> |
569 | <xi:include href="standard-options.xml" xpointer="no-legend" /> | |
dfdebb1b ZJS |
570 | <xi:include href="standard-options.xml" xpointer="help" /> |
571 | <xi:include href="standard-options.xml" xpointer="version" /> | |
4a6022f0 ZJS |
572 | </variablelist> |
573 | </refsect1> | |
574 | ||
575 | <refsect1> | |
576 | <title>Commands</title> | |
577 | ||
578 | <para>The following commands are understood:</para> | |
579 | ||
27722f96 LN |
580 | <refsect2> |
581 | <title>Unit Commands</title> | |
4a6022f0 | 582 | |
27722f96 LN |
583 | <variablelist> |
584 | <varlistentry> | |
4f8f66cb | 585 | <term><command>list-units <optional><replaceable>PATTERN</replaceable>...</optional></command></term> |
4a6022f0 | 586 | |
27722f96 LN |
587 | <listitem> |
588 | <para>List known units (subject to limitations specified | |
d8fba7c6 ZJS |
589 | with <option>-t</option>). If one or more |
590 | <replaceable>PATTERN</replaceable>s are specified, only | |
591 | units matching one of them are shown.</para> | |
991f2a39 | 592 | |
27722f96 LN |
593 | <para>This is the default command.</para> |
594 | </listitem> | |
595 | </varlistentry> | |
991f2a39 | 596 | |
27722f96 | 597 | <varlistentry> |
4f8f66cb | 598 | <term><command>list-sockets <optional><replaceable>PATTERN</replaceable>...</optional></command></term> |
27722f96 LN |
599 | |
600 | <listitem> | |
e0e009c0 | 601 | <para>List socket units ordered by listening address. |
d8fba7c6 ZJS |
602 | If one or more <replaceable>PATTERN</replaceable>s are |
603 | specified, only socket units matching one of them are | |
604 | shown. Produces output similar to | |
27722f96 | 605 | <programlisting> |
991f2a39 ZJS |
606 | LISTEN UNIT ACTIVATES |
607 | /dev/initctl systemd-initctl.socket systemd-initctl.service | |
608 | ... | |
609 | [::]:22 sshd.socket sshd.service | |
610 | kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service | |
611 | ||
9fccdb0f | 612 | 5 sockets listed.</programlisting> |
27722f96 LN |
613 | Note: because the addresses might contains spaces, this output |
614 | is not suitable for programmatic consumption. | |
615 | </para> | |
616 | ||
617 | <para>See also the options <option>--show-types</option>, | |
ed80170d | 618 | <option>--all</option>, and <option>--state=</option>.</para> |
27722f96 LN |
619 | </listitem> |
620 | </varlistentry> | |
621 | ||
cbb76c29 | 622 | <varlistentry> |
4f8f66cb | 623 | <term><command>list-timers <optional><replaceable>PATTERN</replaceable>...</optional></command></term> |
cbb76c29 LP |
624 | |
625 | <listitem> | |
d8fba7c6 ZJS |
626 | <para>List timer units ordered by the time they elapse |
627 | next. If one or more <replaceable>PATTERN</replaceable>s | |
628 | are specified, only units matching one of them are shown. | |
629 | </para> | |
cbb76c29 LP |
630 | |
631 | <para>See also the options <option>--all</option> and | |
ed80170d | 632 | <option>--state=</option>.</para> |
cbb76c29 LP |
633 | </listitem> |
634 | </varlistentry> | |
635 | ||
27722f96 | 636 | <varlistentry> |
e3e0314b | 637 | <term><command>start <replaceable>PATTERN</replaceable>...</command></term> |
27722f96 LN |
638 | |
639 | <listitem> | |
640 | <para>Start (activate) one or more units specified on the | |
641 | command line.</para> | |
e3e0314b ZJS |
642 | |
643 | <para>Note that glob patterns operate on a list of currently | |
644 | loaded units. Units which are not active and are not in a | |
645 | failed state usually are not loaded, and would not be | |
646 | matched by any pattern. In addition, in case of | |
647 | instantiated units, systemd is often unaware of the | |
73e231ab | 648 | instance name until the instance has been started. Therefore, |
e3e0314b ZJS |
649 | using glob patterns with <command>start</command> |
650 | has limited usefulness.</para> | |
27722f96 LN |
651 | </listitem> |
652 | </varlistentry> | |
653 | <varlistentry> | |
e3e0314b | 654 | <term><command>stop <replaceable>PATTERN</replaceable>...</command></term> |
27722f96 LN |
655 | |
656 | <listitem> | |
657 | <para>Stop (deactivate) one or more units specified on the | |
658 | command line.</para> | |
659 | </listitem> | |
660 | </varlistentry> | |
661 | <varlistentry> | |
e3e0314b | 662 | <term><command>reload <replaceable>PATTERN</replaceable>...</command></term> |
27722f96 LN |
663 | |
664 | <listitem> | |
665 | <para>Asks all units listed on the command line to reload | |
666 | their configuration. Note that this will reload the | |
667 | service-specific configuration, not the unit configuration | |
668 | file of systemd. If you want systemd to reload the | |
79640424 | 669 | configuration file of a unit, use the |
27722f96 LN |
670 | <command>daemon-reload</command> command. In other words: |
671 | for the example case of Apache, this will reload Apache's | |
672 | <filename>httpd.conf</filename> in the web server, not the | |
673 | <filename>apache.service</filename> systemd unit | |
674 | file.</para> | |
675 | ||
676 | <para>This command should not be confused with the | |
d0a3fb75 | 677 | <command>daemon-reload</command> command.</para> |
27722f96 LN |
678 | </listitem> |
679 | ||
680 | </varlistentry> | |
681 | <varlistentry> | |
e3e0314b | 682 | <term><command>restart <replaceable>PATTERN</replaceable>...</command></term> |
27722f96 LN |
683 | |
684 | <listitem> | |
685 | <para>Restart one or more units specified on the command | |
686 | line. If the units are not running yet, they will be | |
687 | started.</para> | |
688 | </listitem> | |
689 | </varlistentry> | |
690 | <varlistentry> | |
e3e0314b | 691 | <term><command>try-restart <replaceable>PATTERN</replaceable>...</command></term> |
27722f96 LN |
692 | |
693 | <listitem> | |
694 | <para>Restart one or more units specified on the command | |
695 | line if the units are running. This does nothing if units are not | |
696 | running. Note that, for compatibility with Red Hat init | |
697 | scripts, <command>condrestart</command> is equivalent to this | |
698 | command.</para> | |
699 | </listitem> | |
700 | </varlistentry> | |
701 | <varlistentry> | |
e3e0314b | 702 | <term><command>reload-or-restart <replaceable>PATTERN</replaceable>...</command></term> |
27722f96 LN |
703 | |
704 | <listitem> | |
705 | <para>Reload one or more units if they support it. If not, | |
706 | restart them instead. If the units are not running yet, they | |
707 | will be started.</para> | |
708 | </listitem> | |
709 | </varlistentry> | |
710 | <varlistentry> | |
e3e0314b | 711 | <term><command>reload-or-try-restart <replaceable>PATTERN</replaceable>...</command></term> |
27722f96 LN |
712 | |
713 | <listitem> | |
714 | <para>Reload one or more units if they support it. If not, | |
715 | restart them instead. This does nothing if the units are not | |
716 | running. Note that, for compatibility with SysV init scripts, | |
717 | <command>force-reload</command> is equivalent to this | |
718 | command.</para> | |
719 | </listitem> | |
720 | </varlistentry> | |
721 | <varlistentry> | |
722 | <term><command>isolate <replaceable>NAME</replaceable></command></term> | |
723 | ||
724 | <listitem> | |
725 | <para>Start the unit specified on the command line and its | |
507e28d8 CA |
726 | dependencies and stop all others. If a unit name with no |
727 | extension is given, an extension of | |
728 | <literal>.target</literal> will be assumed.</para> | |
27722f96 LN |
729 | |
730 | <para>This is similar to changing the runlevel in a | |
731 | traditional init system. The <command>isolate</command> | |
732 | command will immediately stop processes that are not enabled | |
733 | in the new unit, possibly including the graphical | |
734 | environment or terminal you are currently using.</para> | |
735 | ||
736 | <para>Note that this is allowed only on units where | |
737 | <option>AllowIsolate=</option> is enabled. See | |
738 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
739 | for details.</para> | |
740 | </listitem> | |
741 | </varlistentry> | |
742 | <varlistentry> | |
e3e0314b | 743 | <term><command>kill <replaceable>PATTERN</replaceable>...</command></term> |
27722f96 LN |
744 | |
745 | <listitem> | |
746 | <para>Send a signal to one or more processes of the | |
747 | unit. Use <option>--kill-who=</option> to select which | |
0088d631 LP |
748 | process to kill. Use <option>--signal=</option> to select |
749 | the signal to send.</para> | |
27722f96 LN |
750 | </listitem> |
751 | </varlistentry> | |
752 | <varlistentry> | |
e3e0314b | 753 | <term><command>is-active <replaceable>PATTERN</replaceable>...</command></term> |
27722f96 LN |
754 | |
755 | <listitem> | |
756 | <para>Check whether any of the specified units are active | |
6db27428 ZJS |
757 | (i.e. running). Returns an exit code |
758 | <constant>0</constant> if at least one is active, or | |
759 | non-zero otherwise. Unless <option>--quiet</option> is | |
760 | specified, this will also print the current unit state to | |
761 | standard output.</para> | |
27722f96 LN |
762 | </listitem> |
763 | </varlistentry> | |
764 | <varlistentry> | |
e3e0314b | 765 | <term><command>is-failed <replaceable>PATTERN</replaceable>...</command></term> |
27722f96 LN |
766 | |
767 | <listitem> | |
6db27428 ZJS |
768 | <para>Check whether any of the specified units are in a |
769 | "failed" state. Returns an exit code | |
770 | <constant>0</constant> if at least one has failed, | |
771 | non-zero otherwise. Unless <option>--quiet</option> is | |
772 | specified, this will also print the current unit state to | |
773 | standard output.</para> | |
27722f96 LN |
774 | </listitem> |
775 | </varlistentry> | |
776 | <varlistentry> | |
e3e0314b | 777 | <term><command>status</command> <optional><replaceable>PATTERN</replaceable>...|<replaceable>PID</replaceable>...]</optional></term> |
27722f96 LN |
778 | |
779 | <listitem> | |
780 | <para>Show terse runtime status information about one or | |
781 | more units, followed by most recent log data from the | |
8fcf784d | 782 | journal. If no units are specified, show system status. If |
b8bde116 | 783 | combined with <option>--all</option>, also show the status of |
8fcf784d LP |
784 | all units (subject to limitations specified with |
785 | <option>-t</option>). If a PID is passed, show information | |
786 | about the unit the process belongs to.</para> | |
27722f96 LN |
787 | |
788 | <para>This function is intended to generate human-readable | |
e213d1a3 ZJS |
789 | output. If you are looking for computer-parsable output, |
790 | use <command>show</command> instead. By default this | |
791 | function only shows 10 lines of output and ellipsizes | |
792 | lines to fit in the terminal window. This can be changes | |
793 | with <option>--lines</option> and <option>--full</option>, | |
794 | see above. In addition, <command>journalctl | |
795 | --unit=<replaceable>NAME</replaceable></command> or | |
796 | <command>journalctl | |
797 | --user-unit=<replaceable>NAME</replaceable></command> use | |
798 | a similar filter for messages and might be more | |
799 | convenient. | |
800 | </para> | |
27722f96 LN |
801 | </listitem> |
802 | </varlistentry> | |
803 | <varlistentry> | |
e3e0314b | 804 | <term><command>show</command> <optional><replaceable>PATTERN</replaceable>...|<replaceable>JOB</replaceable>...</optional></term> |
27722f96 LN |
805 | |
806 | <listitem> | |
807 | <para>Show properties of one or more units, jobs, or the | |
79640424 JE |
808 | manager itself. If no argument is specified, properties of |
809 | the manager will be shown. If a unit name is specified, | |
27722f96 | 810 | properties of the unit is shown, and if a job id is |
79640424 | 811 | specified, properties of the job is shown. By default, empty |
27722f96 | 812 | properties are suppressed. Use <option>--all</option> to |
79640424 | 813 | show those too. To select specific properties to show, use |
27722f96 LN |
814 | <option>--property=</option>. This command is intended to be |
815 | used whenever computer-parsable output is required. Use | |
816 | <command>status</command> if you are looking for formatted | |
817 | human-readable output.</para> | |
818 | </listitem> | |
819 | </varlistentry> | |
e93c33d4 | 820 | <varlistentry> |
e3e0314b | 821 | <term><command>cat <replaceable>PATTERN</replaceable>...</command></term> |
27722f96 | 822 | |
e93c33d4 | 823 | <listitem> |
e4c0fbe5 ZJS |
824 | <para>Show backing files of one or more units. Prints the |
825 | "fragment" and "drop-ins" (source files) of units. Each | |
826 | file is preceded by a comment which includes the file | |
827 | name.</para> | |
e93c33d4 SL |
828 | </listitem> |
829 | </varlistentry> | |
27722f96 LN |
830 | <varlistentry> |
831 | <term><command>set-property <replaceable>NAME</replaceable> <replaceable>ASSIGNMENT</replaceable>...</command></term> | |
832 | ||
833 | <listitem> | |
834 | <para>Set the specified unit properties at runtime where | |
835 | this is supported. This allows changing configuration | |
3fde5f30 | 836 | parameter properties such as resource control settings at |
27722f96 | 837 | runtime. Not all properties may be changed at runtime, but |
3fde5f30 LP |
838 | many resource control settings (primarily those in |
839 | <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>) | |
27722f96 LN |
840 | may. The changes are applied instantly, and stored on disk |
841 | for future boots, unless <option>--runtime</option> is | |
3fde5f30 LP |
842 | passed, in which case the settings only apply until the |
843 | next reboot. The syntax of the property assignment follows | |
27722f96 LN |
844 | closely the syntax of assignments in unit files.</para> |
845 | ||
846 | <para>Example: <command>systemctl set-property foobar.service CPUShares=777</command></para> | |
847 | ||
848 | <para>Note that this command allows changing multiple | |
849 | properties at the same time, which is preferable over | |
850 | setting them individually. Like unit file configuration | |
851 | settings, assigning the empty list to list parameters will | |
852 | reset the list.</para> | |
853 | </listitem> | |
854 | </varlistentry> | |
855 | ||
856 | <varlistentry> | |
e3e0314b | 857 | <term><command>help <replaceable>PATTERN</replaceable>...|<replaceable>PID</replaceable>...</command></term> |
27722f96 LN |
858 | |
859 | <listitem> | |
860 | <para>Show manual pages for one or more units, if | |
861 | available. If a PID is given, the manual pages for the unit | |
862 | the process belongs to are shown.</para> | |
863 | </listitem> | |
864 | </varlistentry> | |
865 | ||
866 | <varlistentry> | |
e3e0314b | 867 | <term><command>reset-failed [<replaceable>PATTERN</replaceable>...]</command></term> |
27722f96 LN |
868 | |
869 | <listitem> | |
870 | <para>Reset the <literal>failed</literal> state of the | |
871 | specified units, or if no unit name is passed, reset the state of all | |
872 | units. When a unit fails in some way (i.e. process exiting | |
873 | with non-zero error code, terminating abnormally or timing | |
874 | out), it will automatically enter the | |
875 | <literal>failed</literal> state and its exit code and status | |
876 | is recorded for introspection by the administrator until the | |
877 | service is restarted or reset with this command.</para> | |
878 | </listitem> | |
879 | </varlistentry> | |
880 | ||
881 | <varlistentry> | |
f6375e83 ZJS |
882 | <term> |
883 | <command>list-dependencies</command> | |
884 | <optional><replaceable>NAME</replaceable></optional> | |
885 | </term> | |
27722f96 LN |
886 | |
887 | <listitem> | |
f6375e83 ZJS |
888 | <para>Shows units required and wanted by the specified |
889 | unit. This recursively lists units following the | |
890 | <varname>Requires=</varname>, | |
891 | <varname>RequiresOverridable=</varname>, | |
892 | <varname>Requisite=</varname>, | |
893 | <varname>RequisiteOverridable=</varname>, | |
894 | <varname>Wants=</varname>, <varname>BindsTo=</varname> | |
895 | dependencies. If no unit is specified, | |
896 | <filename>default.target</filename> is implied.</para> | |
897 | ||
898 | <para>By default, only target units are recursively | |
899 | expanded. When <option>--all</option> is passed, all other | |
900 | units are recursively expanded as well.</para> | |
901 | ||
902 | <para>Options <option>--reverse</option>, | |
903 | <option>--after</option>, <option>--before</option> | |
904 | may be used to change what types of dependencies | |
905 | are shown.</para> | |
27722f96 LN |
906 | </listitem> |
907 | </varlistentry> | |
908 | </variablelist> | |
909 | </refsect2> | |
910 | ||
911 | <refsect2> | |
912 | <title>Unit File Commands</title> | |
913 | ||
914 | <variablelist> | |
915 | <varlistentry> | |
d8fba7c6 | 916 | <term><command>list-unit-files <optional><replaceable>PATTERN...</replaceable></optional></command></term> |
27722f96 LN |
917 | |
918 | <listitem> | |
d8fba7c6 ZJS |
919 | <para>List installed unit files. If one or more |
920 | <replaceable>PATTERN</replaceable>s are specified, only | |
921 | units whose filename (just the last component of the path) | |
922 | matches one of them are shown.</para> | |
27722f96 LN |
923 | </listitem> |
924 | </varlistentry> | |
925 | ||
926 | <varlistentry> | |
927 | <term><command>enable <replaceable>NAME</replaceable>...</command></term> | |
928 | ||
929 | <listitem> | |
930 | <para>Enable one or more unit files or unit file instances, | |
931 | as specified on the command line. This will create a number | |
932 | of symlinks as encoded in the <literal>[Install]</literal> | |
933 | sections of the unit files. After the symlinks have been | |
934 | created, the systemd configuration is reloaded (in a way that | |
935 | is equivalent to <command>daemon-reload</command>) to ensure | |
936 | the changes are taken into account immediately. Note that | |
937 | this does <emphasis>not</emphasis> have the effect of also | |
938 | starting any of the units being enabled. If this | |
57ab2eab JS |
939 | is desired, either <option>--now</option> should be used |
940 | together with this command, or an additional <command>start</command> | |
941 | command must be invoked for the unit. Also note that in case of | |
942 | instance enablement, symlinks named the same as instances | |
943 | are created in the install location, however they all point to the | |
944 | same template unit file.</para> | |
27722f96 LN |
945 | |
946 | <para>This command will print the actions executed. This | |
947 | output may be suppressed by passing <option>--quiet</option>. | |
948 | </para> | |
949 | ||
950 | <para>Note that this operation creates only the suggested | |
951 | symlinks for the units. While this command is the | |
952 | recommended way to manipulate the unit configuration | |
953 | directory, the administrator is free to make additional | |
954 | changes manually by placing or removing symlinks in the | |
955 | directory. This is particularly useful to create | |
956 | configurations that deviate from the suggested default | |
957 | installation. In this case, the administrator must make sure | |
958 | to invoke <command>daemon-reload</command> manually as | |
959 | necessary to ensure the changes are taken into account. | |
960 | </para> | |
961 | ||
962 | <para>Enabling units should not be confused with starting | |
963 | (activating) units, as done by the <command>start</command> | |
964 | command. Enabling and starting units is orthogonal: units | |
965 | may be enabled without being started and started without | |
966 | being enabled. Enabling simply hooks the unit into various | |
967 | suggested places (for example, so that the unit is | |
968 | automatically started on boot or when a particular kind of | |
969 | hardware is plugged in). Starting actually spawns the daemon | |
970 | process (in case of service units), or binds the socket (in | |
971 | case of socket units), and so on.</para> | |
972 | ||
973 | <para>Depending on whether <option>--system</option>, | |
1bee43de | 974 | <option>--user</option>, <option>--runtime</option>, |
72f4d966 | 975 | or <option>--global</option> is specified, this enables the unit |
1bee43de ZJS |
976 | for the system, for the calling user only, for only this boot of |
977 | the system, or for all future logins of all users, or only this | |
978 | boot. Note that in the last case, no systemd daemon | |
27722f96 | 979 | configuration is reloaded.</para> |
751ea8de JS |
980 | |
981 | <para>Using <command>enable</command> on masked units | |
982 | results in an error.</para> | |
27722f96 LN |
983 | </listitem> |
984 | </varlistentry> | |
985 | ||
986 | <varlistentry> | |
987 | <term><command>disable <replaceable>NAME</replaceable>...</command></term> | |
988 | ||
989 | <listitem> | |
990 | <para>Disables one or more units. This removes all symlinks | |
991 | to the specified unit files from the unit configuration | |
992 | directory, and hence undoes the changes made by | |
993 | <command>enable</command>. Note however that this removes | |
994 | all symlinks to the unit files (i.e. including manual | |
995 | additions), not just those actually created by | |
996 | <command>enable</command>. This call implicitly reloads the | |
997 | systemd daemon configuration after completing the disabling | |
998 | of the units. Note that this command does not implicitly | |
57ab2eab JS |
999 | stop the units that are being disabled. If this is desired, either |
1000 | <option>--now</option> should be used together with this command, or | |
1001 | an additional <command>stop</command> command should be executed | |
1002 | afterwards.</para> | |
27722f96 LN |
1003 | |
1004 | <para>This command will print the actions executed. This | |
1005 | output may be suppressed by passing <option>--quiet</option>. | |
1006 | </para> | |
1007 | ||
1008 | <para>This command honors <option>--system</option>, | |
72f4d966 | 1009 | <option>--user</option>, <option>--runtime</option> and |
1bee43de ZJS |
1010 | <option>--global</option> in a similar way as |
1011 | <command>enable</command>.</para> | |
27722f96 LN |
1012 | </listitem> |
1013 | </varlistentry> | |
1014 | ||
b619ec8f LP |
1015 | <varlistentry> |
1016 | <term><command>reenable <replaceable>NAME</replaceable>...</command></term> | |
1017 | ||
1018 | <listitem> | |
1019 | <para>Reenable one or more unit files, as specified on the | |
1020 | command line. This is a combination of | |
1021 | <command>disable</command> and <command>enable</command> and | |
1022 | is useful to reset the symlinks a unit is enabled with to | |
1023 | the defaults configured in the <literal>[Install]</literal> | |
1024 | section of the unit file.</para> | |
1025 | </listitem> | |
1026 | </varlistentry> | |
1027 | ||
1028 | <varlistentry> | |
1029 | <term><command>preset <replaceable>NAME</replaceable>...</command></term> | |
1030 | ||
1031 | <listitem> | |
1032 | <para>Reset one or more unit files, as specified on the | |
1033 | command line, to the defaults configured in the preset | |
1034 | policy files. This has the same effect as | |
1035 | <command>disable</command> or <command>enable</command>, | |
1036 | depending how the unit is listed in the preset files.</para> | |
1037 | ||
1038 | <para>Use <option>--preset-mode=</option> to control | |
1039 | whether units shall be enabled and disabled, or only | |
1040 | enabled, or only disabled.</para> | |
1041 | ||
1042 | <para>For more information on the preset policy format, | |
1043 | see | |
1044 | <citerefentry><refentrytitle>systemd.preset</refentrytitle><manvolnum>5</manvolnum></citerefentry>. | |
1045 | For more information on the concept of presets, please | |
1046 | consult the <ulink | |
1047 | url="http://freedesktop.org/wiki/Software/systemd/Preset">Preset</ulink> | |
1048 | document.</para> | |
1049 | </listitem> | |
1050 | </varlistentry> | |
1051 | ||
1052 | <varlistentry> | |
1053 | <term><command>preset-all</command></term> | |
1054 | ||
1055 | <listitem> | |
1056 | <para>Resets all installed unit files to the defaults | |
1057 | configured in the preset policy file (see above).</para> | |
1058 | ||
1059 | <para>Use <option>--preset-mode=</option> to control | |
1060 | whether units shall be enabled and disabled, or only | |
1061 | enabled, or only disabled.</para> | |
1062 | </listitem> | |
1063 | </varlistentry> | |
1064 | ||
27722f96 LN |
1065 | <varlistentry> |
1066 | <term><command>is-enabled <replaceable>NAME</replaceable>...</command></term> | |
1067 | ||
1068 | <listitem> | |
1069 | <para>Checks whether any of the specified unit files are | |
171754aa ZJS |
1070 | enabled (as with <command>enable</command>). Returns an |
1071 | exit code of 0 if at least one is enabled, non-zero | |
1072 | otherwise. Prints the current enable status (see table). | |
1073 | To suppress this output, use <option>--quiet</option>. | |
1074 | </para> | |
1075 | ||
1076 | <table> | |
1077 | <title> | |
1078 | <command>is-enabled</command> output | |
1079 | </title> | |
1080 | ||
1081 | <tgroup cols='3'> | |
1082 | <thead> | |
1083 | <row> | |
1084 | <entry>Printed string</entry> | |
1085 | <entry>Meaning</entry> | |
1086 | <entry>Return value</entry> | |
1087 | </row> | |
1088 | </thead> | |
1089 | <tbody> | |
1090 | <row> | |
1091 | <entry><literal>enabled</literal></entry> | |
39f76ad8 | 1092 | <entry morerows='1'>Enabled through a symlink in <filename>.wants</filename> directory (permanently or just in <filename>/run</filename>).</entry> |
171754aa ZJS |
1093 | <entry morerows='1'>0</entry> |
1094 | </row> | |
1095 | <row> | |
1096 | <entry><literal>enabled-runtime</literal></entry> | |
1097 | </row> | |
1098 | <row> | |
1099 | <entry><literal>linked</literal></entry> | |
39f76ad8 | 1100 | <entry morerows='1'>Made available through a symlink to the unit file (permanently or just in <filename>/run</filename>).</entry> |
171754aa ZJS |
1101 | <entry morerows='1'>1</entry> |
1102 | </row> | |
1103 | <row> | |
1104 | <entry><literal>linked-runtime</literal></entry> | |
1105 | </row> | |
1106 | <row> | |
1107 | <entry><literal>masked</literal></entry> | |
39f76ad8 | 1108 | <entry morerows='1'>Disabled entirely (permanently or just in <filename>/run</filename>).</entry> |
171754aa ZJS |
1109 | <entry morerows='1'>1</entry> |
1110 | </row> | |
1111 | <row> | |
1112 | <entry><literal>masked-runtime</literal></entry> | |
1113 | </row> | |
1114 | <row> | |
1115 | <entry><literal>static</literal></entry> | |
39f76ad8 | 1116 | <entry>Unit file is not enabled, and has no provisions for enabling in the <literal>[Install]</literal> section.</entry> |
91f0ac7d | 1117 | <entry>0</entry> |
171754aa | 1118 | </row> |
aedd4012 JS |
1119 | <row> |
1120 | <entry><literal>indirect</literal></entry> | |
39f76ad8 | 1121 | <entry>Unit file itself is not enabled, but it has a non-empty <varname>Also=</varname> setting in the <literal>[Install]</literal> section, listing other unit files that might be enabled.</entry> |
aedd4012 JS |
1122 | <entry>0</entry> |
1123 | </row> | |
171754aa ZJS |
1124 | <row> |
1125 | <entry><literal>disabled</literal></entry> | |
39f76ad8 | 1126 | <entry>Unit file is not enabled.</entry> |
171754aa ZJS |
1127 | <entry>1</entry> |
1128 | </row> | |
1129 | </tbody> | |
1130 | </tgroup> | |
1131 | </table> | |
1132 | ||
27722f96 LN |
1133 | </listitem> |
1134 | </varlistentry> | |
1135 | ||
27722f96 LN |
1136 | <varlistentry> |
1137 | <term><command>mask <replaceable>NAME</replaceable>...</command></term> | |
1138 | ||
1139 | <listitem> | |
1140 | <para>Mask one or more unit files, as specified on the | |
1141 | command line. This will link these units to | |
1142 | <filename>/dev/null</filename>, making it impossible to | |
1143 | start them. This is a stronger version of | |
1144 | <command>disable</command>, since it prohibits all kinds of | |
751ea8de JS |
1145 | activation of the unit, including enablement and manual |
1146 | activation. Use this option with care. This honors the | |
72f4d966 | 1147 | <option>--runtime</option> option to only mask temporarily |
57ab2eab JS |
1148 | until the next reboot of the system. The <option>--now</option> |
1149 | option can be used to ensure that the units are also stopped.</para> | |
27722f96 LN |
1150 | </listitem> |
1151 | </varlistentry> | |
1152 | ||
1153 | <varlistentry> | |
1154 | <term><command>unmask <replaceable>NAME</replaceable>...</command></term> | |
1155 | ||
1156 | <listitem> | |
1157 | <para>Unmask one or more unit files, as specified on the | |
1158 | command line. This will undo the effect of | |
1159 | <command>mask</command>.</para> | |
1160 | </listitem> | |
1161 | </varlistentry> | |
1162 | ||
1163 | <varlistentry> | |
1164 | <term><command>link <replaceable>FILENAME</replaceable>...</command></term> | |
1165 | ||
1166 | <listitem> | |
1167 | <para>Link a unit file that is not in the unit file search | |
1168 | paths into the unit file search path. This requires an | |
1169 | absolute path to a unit file. The effect of this can be | |
1170 | undone with <command>disable</command>. The effect of this | |
1171 | command is that a unit file is available for | |
1172 | <command>start</command> and other commands although it | |
1173 | is not installed directly in the unit search path.</para> | |
1174 | </listitem> | |
1175 | </varlistentry> | |
1176 | ||
1177 | <varlistentry> | |
b619ec8f LP |
1178 | <term><command>add-wants <replaceable>TARGET</replaceable> |
1179 | <replaceable>NAME</replaceable>...</command></term> | |
1180 | <term><command>add-requires <replaceable>TARGET</replaceable> | |
1181 | <replaceable>NAME</replaceable>...</command></term> | |
27722f96 LN |
1182 | |
1183 | <listitem> | |
b619ec8f LP |
1184 | <para>Adds <literal>Wants=</literal> resp. <literal>Requires=</literal> |
1185 | dependency to the specified <replaceable>TARGET</replaceable> for | |
1186 | one or more units. </para> | |
27722f96 | 1187 | |
b619ec8f LP |
1188 | <para>This command honors <option>--system</option>, |
1189 | <option>--user</option>, <option>--runtime</option> and | |
1190 | <option>--global</option> in a similar way as | |
1191 | <command>enable</command>.</para> | |
27722f96 | 1192 | |
27722f96 LN |
1193 | </listitem> |
1194 | </varlistentry> | |
7d4fb3b1 RC |
1195 | |
1196 | <varlistentry> | |
1197 | <term><command>edit <replaceable>NAME</replaceable>...</command></term> | |
1198 | ||
1199 | <listitem> | |
1200 | <para>Edit a drop-in snippet or a whole replacement file if | |
1201 | <option>--full</option> is specified, to extend or override the | |
1202 | specified unit.</para> | |
1203 | ||
1204 | <para>Depending on whether <option>--system</option> (the default), | |
1205 | <option>--user</option>, or <option>--global</option> is specified, | |
1206 | this creates a drop-in file for each unit either for the system, | |
1207 | for the calling user or for all futures logins of all users. Then, | |
1208 | the editor (see the "Environment" section below) is invoked on | |
1209 | temporary files which will be written to the real location if the | |
1210 | editor exits successfully.</para> | |
1211 | ||
1212 | <para>If <option>--full</option> is specified, this will copy the | |
1213 | original units instead of creating drop-in files.</para> | |
1214 | ||
1215 | <para>If <option>--runtime</option> is specified, the changes will | |
1216 | be made temporarily in <filename>/run</filename> and they will be | |
1217 | lost on the next reboot.</para> | |
1218 | ||
1219 | <para>If the temporary file is empty upon exit the modification of | |
1220 | the related unit is canceled</para> | |
1221 | ||
1222 | <para>After the units have been edited, systemd configuration is | |
1223 | reloaded (in a way that is equivalent to <command>daemon-reload</command>). | |
1224 | </para> | |
1225 | ||
1226 | <para>Note that this command cannot be used to remotely edit units | |
1227 | and that you cannot temporarily edit units which are in | |
1228 | <filename>/etc</filename> since they take precedence over | |
1229 | <filename>/run</filename>.</para> | |
1230 | </listitem> | |
1231 | </varlistentry> | |
b619ec8f LP |
1232 | |
1233 | <varlistentry> | |
1234 | <term><command>get-default</command></term> | |
1235 | ||
1236 | <listitem> | |
1237 | <para>Return the default target to boot into. This returns | |
1238 | the target unit name <filename>default.target</filename> | |
1239 | is aliased (symlinked) to.</para> | |
1240 | </listitem> | |
1241 | </varlistentry> | |
1242 | ||
1243 | <varlistentry> | |
1244 | <term><command>set-default <replaceable>NAME</replaceable></command></term> | |
1245 | ||
1246 | <listitem> | |
1247 | <para>Set the default target to boot into. This sets | |
1248 | (symlinks) the <filename>default.target</filename> alias | |
1249 | to the given target unit.</para> | |
1250 | </listitem> | |
1251 | </varlistentry> | |
1252 | ||
27722f96 LN |
1253 | </variablelist> |
1254 | </refsect2> | |
1255 | ||
0d292f5e LP |
1256 | <refsect2> |
1257 | <title>Machine Commands</title> | |
1258 | ||
1259 | <variablelist> | |
1260 | <varlistentry> | |
1261 | <term><command>list-machines <optional><replaceable>PATTERN</replaceable>...</optional></command></term> | |
1262 | ||
1263 | <listitem> | |
1264 | <para>List the host and all running local containers with | |
1265 | their state. If one or more | |
1266 | <replaceable>PATTERN</replaceable>s are specified, only | |
1267 | containers matching one of them are shown. | |
1268 | </para> | |
1269 | </listitem> | |
1270 | </varlistentry> | |
1271 | </variablelist> | |
1272 | </refsect2> | |
1273 | ||
27722f96 LN |
1274 | <refsect2> |
1275 | <title>Job Commands</title> | |
1276 | ||
1277 | <variablelist> | |
1278 | <varlistentry> | |
d8fba7c6 | 1279 | <term><command>list-jobs <optional><replaceable>PATTERN...</replaceable></optional></command></term> |
27722f96 LN |
1280 | |
1281 | <listitem> | |
d8fba7c6 ZJS |
1282 | <para>List jobs that are in progress. If one or more |
1283 | <replaceable>PATTERN</replaceable>s are specified, only | |
1284 | jobs for units matching one of them are shown.</para> | |
27722f96 LN |
1285 | </listitem> |
1286 | </varlistentry> | |
1287 | <varlistentry> | |
1288 | <term><command>cancel <replaceable>JOB</replaceable>...</command></term> | |
1289 | ||
1290 | <listitem> | |
1291 | <para>Cancel one or more jobs specified on the command line | |
1292 | by their numeric job IDs. If no job ID is specified, cancel | |
1293 | all pending jobs.</para> | |
1294 | </listitem> | |
1295 | </varlistentry> | |
1296 | </variablelist> | |
1297 | </refsect2> | |
1298 | ||
1299 | <refsect2> | |
1300 | <title>Snapshot Commands</title> | |
1301 | ||
1302 | <variablelist> | |
1303 | <varlistentry> | |
d8fba7c6 | 1304 | <term><command>snapshot <optional><replaceable>NAME</replaceable></optional></command></term> |
27722f96 LN |
1305 | |
1306 | <listitem> | |
1307 | <para>Create a snapshot. If a snapshot name is specified, | |
1308 | the new snapshot will be named after it. If none is | |
6db27428 ZJS |
1309 | specified, an automatic snapshot name is generated. In |
1310 | either case, the snapshot name used is printed to standard | |
1311 | output, unless <option>--quiet</option> is specified. | |
1312 | </para> | |
27722f96 LN |
1313 | |
1314 | <para>A snapshot refers to a saved state of the systemd | |
1315 | manager. It is implemented itself as a unit that is | |
1316 | generated dynamically with this command and has dependencies | |
1317 | on all units active at the time. At a later time, the user | |
1318 | may return to this state by using the | |
1319 | <command>isolate</command> command on the snapshot unit. | |
1320 | </para> | |
1321 | ||
1322 | <para>Snapshots are only useful for saving and restoring | |
1323 | which units are running or are stopped, they do not | |
1324 | save/restore any other state. Snapshots are dynamic and lost | |
1325 | on reboot.</para> | |
1326 | </listitem> | |
1327 | </varlistentry> | |
1328 | <varlistentry> | |
e3e0314b | 1329 | <term><command>delete <replaceable>PATTERN</replaceable>...</command></term> |
27722f96 LN |
1330 | |
1331 | <listitem> | |
1332 | <para>Remove a snapshot previously created with | |
1333 | <command>snapshot</command>.</para> | |
1334 | </listitem> | |
1335 | </varlistentry> | |
1336 | </variablelist> | |
1337 | </refsect2> | |
1338 | ||
1339 | <refsect2> | |
1340 | <title>Environment Commands</title> | |
1341 | ||
1342 | <variablelist> | |
1343 | <varlistentry> | |
1344 | <term><command>show-environment</command></term> | |
1345 | ||
1346 | <listitem> | |
1347 | <para>Dump the systemd manager environment block. The | |
1348 | environment block will be dumped in straight-forward form | |
1349 | suitable for sourcing into a shell script. This environment | |
1350 | block will be passed to all processes the manager | |
1351 | spawns.</para> | |
1352 | </listitem> | |
1353 | </varlistentry> | |
1354 | <varlistentry> | |
1355 | <term><command>set-environment <replaceable>VARIABLE=VALUE</replaceable>...</command></term> | |
1356 | ||
1357 | <listitem> | |
1358 | <para>Set one or more systemd manager environment variables, | |
1359 | as specified on the command line.</para> | |
1360 | </listitem> | |
1361 | </varlistentry> | |
1362 | <varlistentry> | |
1363 | <term><command>unset-environment <replaceable>VARIABLE</replaceable>...</command></term> | |
1364 | ||
1365 | <listitem> | |
1366 | <para>Unset one or more systemd manager environment | |
1367 | variables. If only a variable name is specified, it will be | |
1368 | removed regardless of its value. If a variable and a value | |
1369 | are specified, the variable is only removed if it has the | |
1370 | specified value.</para> | |
1371 | </listitem> | |
ac3efa8a LP |
1372 | </varlistentry> |
1373 | <varlistentry> | |
3fb90db2 | 1374 | <term> |
b975b0d5 ZJS |
1375 | <command>import-environment</command> |
1376 | <optional><replaceable>VARIABLE...</replaceable></optional> | |
1377 | </term> | |
ac3efa8a LP |
1378 | |
1379 | <listitem> | |
1380 | <para>Import all, one or more environment variables set on | |
1381 | the client into the systemd manager environment block. If | |
73e231ab JE |
1382 | no arguments are passed, the entire environment block is |
1383 | imported. Otherwise, a list of one or more environment | |
1384 | variable names should be passed, whose client-side values | |
ac3efa8a LP |
1385 | are then imported into the manager's environment |
1386 | block.</para> | |
1387 | </listitem> | |
27722f96 LN |
1388 | </varlistentry> |
1389 | </variablelist> | |
1390 | </refsect2> | |
1391 | ||
1392 | <refsect2> | |
1393 | <title>Manager Lifecycle Commands</title> | |
1394 | ||
1395 | <variablelist> | |
1396 | <varlistentry> | |
1397 | <term><command>daemon-reload</command></term> | |
1398 | ||
1399 | <listitem> | |
432d5965 ZJS |
1400 | <para>Reload systemd manager configuration. This will |
1401 | rerun all generators (see | |
1402 | <citerefentry><refentrytitle>systemd.generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>), | |
1403 | reload all unit files, and recreate the entire dependency | |
1404 | tree. While the daemon is being reloaded, all sockets | |
1405 | systemd listens on behalf of user configuration will stay | |
1406 | accessible.</para> | |
1407 | ||
1408 | <para>This command should not be confused with the | |
1409 | <command>reload</command> command.</para> | |
27722f96 LN |
1410 | </listitem> |
1411 | </varlistentry> | |
1412 | <varlistentry> | |
1413 | <term><command>daemon-reexec</command></term> | |
1414 | ||
1415 | <listitem> | |
1416 | <para>Reexecute the systemd manager. This will serialize the | |
1417 | manager state, reexecute the process and deserialize the | |
1418 | state again. This command is of little use except for | |
79640424 | 1419 | debugging and package upgrades. Sometimes, it might be |
27722f96 | 1420 | helpful as a heavy-weight <command>daemon-reload</command>. |
79640424 | 1421 | While the daemon is being reexecuted, all sockets systemd listening |
27722f96 LN |
1422 | on behalf of user configuration will stay accessible. |
1423 | </para> | |
1424 | </listitem> | |
1425 | </varlistentry> | |
1426 | </variablelist> | |
1427 | </refsect2> | |
1428 | ||
1429 | <refsect2> | |
1430 | <title>System Commands</title> | |
1431 | ||
1432 | <variablelist> | |
99813a19 LP |
1433 | <varlistentry> |
1434 | <term><command>is-system-running</command></term> | |
1435 | ||
1436 | <listitem> | |
2de51fdc ZJS |
1437 | <para>Checks whether the system is operational. This |
1438 | returns success when the system is fully up and running, | |
1439 | meaning not in startup, shutdown or maintenance | |
1440 | mode. Failure is returned otherwise. In addition, the | |
1441 | current state is printed in a short string to standard | |
1442 | output, see table below. Use <option>--quiet</option> to | |
1443 | suppress this output.</para> | |
1444 | ||
1445 | <table> | |
1446 | <title>Manager Operational States</title> | |
1447 | <tgroup cols='2'> | |
1448 | <colspec colname='name' /> | |
1449 | <colspec colname='description' /> | |
1450 | <thead> | |
1451 | <row> | |
1452 | <entry>Name</entry> | |
1453 | <entry>Description</entry> | |
1454 | </row> | |
1455 | </thead> | |
1456 | <tbody> | |
1457 | <row> | |
1458 | <entry><varname>initializing</varname></entry> | |
1459 | <entry><para>Early bootup, before | |
1fdfa094 LP |
1460 | <filename>basic.target</filename> is reached |
1461 | or the <varname>maintenance</varname> state entered. | |
2de51fdc ZJS |
1462 | </para></entry> |
1463 | </row> | |
1464 | <row> | |
1465 | <entry><varname>starting</varname></entry> | |
1fdfa094 LP |
1466 | <entry><para>Late bootup, before the job queue |
1467 | becomes idle for the first time, or one of the | |
1468 | rescue targets are reached.</para></entry> | |
2de51fdc ZJS |
1469 | </row> |
1470 | <row> | |
1471 | <entry><varname>running</varname></entry> | |
1472 | <entry><para>The system is fully | |
1473 | operational.</para></entry> | |
1474 | </row> | |
1475 | <row> | |
1476 | <entry><varname>degraded</varname></entry> | |
1477 | <entry><para>The system is operational but one or more | |
1478 | units failed.</para></entry> | |
1479 | </row> | |
1480 | <row> | |
1481 | <entry><varname>maintenance</varname></entry> | |
1fdfa094 | 1482 | <entry><para>The rescue or emergency target is |
2de51fdc ZJS |
1483 | active.</para></entry> |
1484 | </row> | |
1485 | <row> | |
1486 | <entry><varname>stopping</varname></entry> | |
1487 | <entry><para>The manager is shutting | |
1488 | down.</para></entry> | |
1489 | </row> | |
1490 | </tbody> | |
1491 | </tgroup> | |
1492 | </table> | |
99813a19 LP |
1493 | </listitem> |
1494 | </varlistentry> | |
1495 | ||
27722f96 LN |
1496 | <varlistentry> |
1497 | <term><command>default</command></term> | |
1498 | ||
1499 | <listitem> | |
1500 | <para>Enter default mode. This is mostly equivalent to | |
1501 | <command>isolate default.target</command>.</para> | |
1502 | </listitem> | |
1503 | </varlistentry> | |
99813a19 | 1504 | |
27722f96 LN |
1505 | <varlistentry> |
1506 | <term><command>rescue</command></term> | |
1507 | ||
1508 | <listitem> | |
1509 | <para>Enter rescue mode. This is mostly equivalent to | |
1510 | <command>isolate rescue.target</command>, but also prints a | |
1511 | wall message to all users.</para> | |
1512 | </listitem> | |
1513 | </varlistentry> | |
1514 | <varlistentry> | |
1515 | <term><command>emergency</command></term> | |
1516 | ||
1517 | <listitem> | |
1518 | <para>Enter emergency mode. This is mostly equivalent to | |
1519 | <command>isolate emergency.target</command>, but also prints | |
1520 | a wall message to all users.</para> | |
1521 | </listitem> | |
1522 | </varlistentry> | |
1523 | <varlistentry> | |
1524 | <term><command>halt</command></term> | |
1525 | ||
1526 | <listitem> | |
1527 | <para>Shut down and halt the system. This is mostly equivalent to | |
903e7c37 | 1528 | <command>start halt.target --job-mode=replace-irreversibly</command>, but also |
27722f96 LN |
1529 | prints a wall message to all users. If combined with |
1530 | <option>--force</option>, shutdown of all running services is | |
1531 | skipped, however all processes are killed and all file | |
1532 | systems are unmounted or mounted read-only, immediately | |
1533 | followed by the system halt. If <option>--force</option> is | |
1534 | specified twice, the operation is immediately executed | |
1535 | without terminating any processes or unmounting any file | |
1536 | systems. This may result in data loss.</para> | |
1537 | </listitem> | |
1538 | </varlistentry> | |
1539 | <varlistentry> | |
1540 | <term><command>poweroff</command></term> | |
1541 | ||
1542 | <listitem> | |
1543 | <para>Shut down and power-off the system. This is mostly | |
903e7c37 | 1544 | equivalent to <command>start poweroff.target --job-mode=replace-irreversibly</command>, |
27722f96 LN |
1545 | but also prints a wall message to all users. If combined with |
1546 | <option>--force</option>, shutdown of all running services is | |
1547 | skipped, however all processes are killed and all file | |
1548 | systems are unmounted or mounted read-only, immediately | |
1549 | followed by the powering off. If <option>--force</option> is | |
1550 | specified twice, the operation is immediately executed | |
1551 | without terminating any processes or unmounting any file | |
1552 | systems. This may result in data loss.</para> | |
1553 | </listitem> | |
1554 | </varlistentry> | |
1555 | <varlistentry> | |
37185ec8 | 1556 | <term><command>reboot <optional><replaceable>arg</replaceable></optional></command></term> |
27722f96 LN |
1557 | |
1558 | <listitem> | |
1559 | <para>Shut down and reboot the system. This is mostly | |
903e7c37 | 1560 | equivalent to <command>start reboot.target --job-mode=replace-irreversibly</command>, |
27722f96 LN |
1561 | but also prints a wall message to all users. If combined with |
1562 | <option>--force</option>, shutdown of all running services is | |
1563 | skipped, however all processes are killed and all file | |
1564 | systems are unmounted or mounted read-only, immediately | |
1565 | followed by the reboot. If <option>--force</option> is | |
1566 | specified twice, the operation is immediately executed | |
1567 | without terminating any processes or unmounting any file | |
1568 | systems. This may result in data loss.</para> | |
37185ec8 WC |
1569 | |
1570 | <para>If the optional argument | |
1571 | <replaceable>arg</replaceable> is given, it will be passed | |
1572 | as the optional argument to the | |
1573 | <citerefentry><refentrytitle>reboot</refentrytitle><manvolnum>2</manvolnum></citerefentry> | |
1574 | system call. The value is architecture and firmware | |
1575 | specific. As an example, <literal>recovery</literal> might | |
1576 | be used to trigger system recovery, and | |
1577 | <literal>fota</literal> might be used to trigger a | |
1578 | <quote>firmware over the air</quote> update.</para> | |
27722f96 LN |
1579 | </listitem> |
1580 | </varlistentry> | |
b619ec8f | 1581 | |
27722f96 LN |
1582 | <varlistentry> |
1583 | <term><command>kexec</command></term> | |
1584 | ||
1585 | <listitem> | |
1586 | <para>Shut down and reboot the system via kexec. This is | |
903e7c37 | 1587 | mostly equivalent to <command>start kexec.target --job-mode=replace-irreversibly</command>, |
27722f96 LN |
1588 | but also prints a wall message to all users. If combined |
1589 | with <option>--force</option>, shutdown of all running | |
1590 | services is skipped, however all processes are killed and | |
1591 | all file systems are unmounted or mounted read-only, | |
1592 | immediately followed by the reboot.</para> | |
1593 | </listitem> | |
1594 | </varlistentry> | |
b619ec8f | 1595 | |
27722f96 LN |
1596 | <varlistentry> |
1597 | <term><command>exit</command></term> | |
1598 | ||
1599 | <listitem> | |
1600 | <para>Ask the systemd manager to quit. This is only | |
1601 | supported for user service managers (i.e. in conjunction | |
1602 | with the <option>--user</option> option) and will fail | |
1603 | otherwise.</para> | |
1604 | </listitem> | |
b619ec8f | 1605 | </varlistentry> |
27722f96 | 1606 | |
b619ec8f LP |
1607 | <varlistentry> |
1608 | <term><command>switch-root <replaceable>ROOT</replaceable> <optional><replaceable>INIT</replaceable></optional></command></term> | |
1609 | ||
1610 | <listitem> | |
1611 | <para>Switches to a different root directory and executes a | |
1612 | new system manager process below it. This is intended for | |
1613 | usage in initial RAM disks ("initrd"), and will transition | |
1614 | from the initrd's system manager process (a.k.a "init" | |
1615 | process) to the main system manager process. This call takes two | |
1616 | arguments: the directory that is to become the new root directory, and | |
1617 | the path to the new system manager binary below it to | |
1618 | execute as PID 1. If the latter is omitted or the empty | |
1619 | string, a systemd binary will automatically be searched for | |
1620 | and used as init. If the system manager path is omitted or | |
1621 | equal to the empty string, the state of the initrd's system | |
1622 | manager process is passed to the main system manager, which | |
1623 | allows later introspection of the state of the services | |
1624 | involved in the initrd boot.</para> | |
1625 | </listitem> | |
27722f96 | 1626 | </varlistentry> |
b619ec8f | 1627 | |
27722f96 LN |
1628 | <varlistentry> |
1629 | <term><command>suspend</command></term> | |
1630 | ||
1631 | <listitem> | |
1632 | <para>Suspend the system. This will trigger activation of | |
1633 | the special <filename>suspend.target</filename> target. | |
1634 | </para> | |
1635 | </listitem> | |
1636 | </varlistentry> | |
b619ec8f | 1637 | |
27722f96 LN |
1638 | <varlistentry> |
1639 | <term><command>hibernate</command></term> | |
1640 | ||
1641 | <listitem> | |
1642 | <para>Hibernate the system. This will trigger activation of | |
1643 | the special <filename>hibernate.target</filename> target. | |
1644 | </para> | |
1645 | </listitem> | |
1646 | </varlistentry> | |
b619ec8f | 1647 | |
27722f96 LN |
1648 | <varlistentry> |
1649 | <term><command>hybrid-sleep</command></term> | |
1650 | ||
1651 | <listitem> | |
1652 | <para>Hibernate and suspend the system. This will trigger | |
1653 | activation of the special | |
1654 | <filename>hybrid-sleep.target</filename> target.</para> | |
1655 | </listitem> | |
1656 | </varlistentry> | |
27722f96 LN |
1657 | </variablelist> |
1658 | </refsect2> | |
4a6022f0 | 1659 | |
a7c0e5d7 LP |
1660 | <refsect2> |
1661 | <title>Parameter Syntax</title> | |
1662 | ||
1e89266b | 1663 | <para>Unit commands listed above take either a single unit name |
e3e0314b ZJS |
1664 | (designated as <replaceable>NAME</replaceable>), or multiple |
1665 | unit specifications (designated as | |
1666 | <replaceable>PATTERN</replaceable>...). In the first case, the | |
1667 | unit name with or without a suffix must be given. If the suffix | |
1668 | is not specified, systemctl will append a suitable suffix, | |
1669 | <literal>.service</literal> by default, and a type-specific | |
1670 | suffix in case of commands which operate only on specific unit | |
1671 | types. For example, | |
1672 | <programlisting># systemctl start sshd</programlisting> and | |
1673 | <programlisting># systemctl start sshd.service</programlisting> | |
1674 | are equivalent, as are | |
507e28d8 | 1675 | <programlisting># systemctl isolate default</programlisting> |
e3e0314b | 1676 | and |
507e28d8 | 1677 | <programlisting># systemctl isolate default.target</programlisting> |
e3e0314b ZJS |
1678 | Note that (absolute) paths to device nodes are automatically |
1679 | converted to device unit names, and other (absolute) paths to | |
1680 | mount unit names. | |
1681 | <programlisting># systemctl status /dev/sda | |
1682 | # systemctl status /home</programlisting> | |
1683 | are equivalent to: | |
1684 | <programlisting># systemctl status dev-sda.device | |
1685 | # systemctl status home.mount</programlisting> | |
1686 | In the second case, shell-style globs will be matched against | |
73e231ab | 1687 | currently loaded units; literal unit names, with or without |
e3e0314b ZJS |
1688 | a suffix, will be treated as in the first case. This means that |
1689 | literal unit names always refer to exactly one unit, but globs | |
1690 | may match zero units and this is not considered an error.</para> | |
1691 | ||
1692 | <para>Glob patterns use | |
decde8cd | 1693 | <citerefentry project='man-pages'><refentrytitle>fnmatch</refentrytitle><manvolnum>3</manvolnum></citerefentry>, |
e3e0314b ZJS |
1694 | so normal shell-style globbing rules are used, and |
1695 | <literal>*</literal>, <literal>?</literal>, | |
1696 | <literal>[]</literal> may be used. See | |
decde8cd | 1697 | <citerefentry project='man-pages'><refentrytitle>glob</refentrytitle><manvolnum>7</manvolnum></citerefentry> |
e3e0314b | 1698 | for more details. The patterns are matched against the names of |
66f756d4 | 1699 | currently loaded units, and patterns which do not match anything |
e3e0314b ZJS |
1700 | are silently skipped. For example: |
1701 | <programlisting># systemctl stop sshd@*.service</programlisting> | |
1702 | will stop all <filename>sshd@.service</filename> instances. | |
1703 | </para> | |
1704 | ||
1705 | <para>For unit file commands, the specified | |
1706 | <replaceable>NAME</replaceable> should be the full name of the | |
1707 | unit file, or the absolute path to the unit file: | |
1708 | <programlisting># systemctl enable foo.service</programlisting> | |
1709 | or | |
1710 | <programlisting># systemctl link /path/to/foo.service</programlisting> | |
1711 | </para> | |
a7c0e5d7 LP |
1712 | </refsect2> |
1713 | ||
4a6022f0 ZJS |
1714 | </refsect1> |
1715 | ||
1716 | <refsect1> | |
1717 | <title>Exit status</title> | |
1718 | ||
7b870f60 | 1719 | <para>On success, 0 is returned, a non-zero failure |
4a6022f0 ZJS |
1720 | code otherwise.</para> |
1721 | </refsect1> | |
1722 | ||
7d4fb3b1 RC |
1723 | <refsect1> |
1724 | <title>Environment</title> | |
1725 | ||
1726 | <variablelist class='environment-variables'> | |
1727 | <varlistentry> | |
1728 | <term><varname>$SYSTEMD_EDITOR</varname></term> | |
1729 | ||
1730 | <listitem><para>Editor to use when editing units; overrides | |
1731 | <varname>$EDITOR</varname> and <varname>$VISUAL</varname>. If neither | |
1732 | <varname>$SYSTEMD_EDITOR</varname> nor <varname>$EDITOR</varname> nor | |
1733 | <varname>$VISUAL</varname> are present or if it is set to an empty | |
1734 | string or if their execution failed, systemctl will try to execute well | |
1735 | known editors in this order: | |
3ba3a79d ZJS |
1736 | <citerefentry project='die-net'><refentrytitle>nano</refentrytitle><manvolnum>1</manvolnum></citerefentry>, |
1737 | <citerefentry project='die-net'><refentrytitle>vim</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
1738 | <citerefentry project='die-net'><refentrytitle>vi</refentrytitle><manvolnum>1</manvolnum></citerefentry>. | |
7d4fb3b1 RC |
1739 | </para></listitem> |
1740 | </varlistentry> | |
1741 | </variablelist> | |
1742 | <xi:include href="less-variables.xml" xpointer="pager"/> | |
1743 | <xi:include href="less-variables.xml" xpointer="less"/> | |
1744 | </refsect1> | |
4a6022f0 ZJS |
1745 | |
1746 | <refsect1> | |
1747 | <title>See Also</title> | |
1748 | <para> | |
1749 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
4a6022f0 ZJS |
1750 | <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, |
1751 | <citerefentry><refentrytitle>loginctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
a03fe1a5 | 1752 | <citerefentry><refentrytitle>machinectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, |
4a6022f0 | 1753 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>, |
ee41f602 | 1754 | <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>, |
4a6022f0 | 1755 | <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>, |
5aded369 | 1756 | <citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>, |
7d4fb3b1 | 1757 | <citerefentry><refentrytitle>systemd.preset</refentrytitle><manvolnum>5</manvolnum></citerefentry>, |
432d5965 | 1758 | <citerefentry><refentrytitle>systemd.generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>, |
decde8cd | 1759 | <citerefentry project='man-pages'><refentrytitle>glob</refentrytitle><manvolnum>7</manvolnum></citerefentry> |
4a6022f0 ZJS |
1760 | </para> |
1761 | </refsect1> | |
7874bcd6 LP |
1762 | |
1763 | </refentry> |