projects / thirdparty / systemd.git / blame
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| 7874bcd6 LP |
1 | <?xml version='1.0'?> <!--*-nxml-*--> |
| 2 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" | |
| 3 | "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> | |
| 4 | ||
| 5 | <!-- | |
| 6 | This file is part of systemd. | |
| 7 | ||
| 8 | Copyright 2010 Lennart Poettering | |
| 9 | ||
| 10 | systemd is free software; you can redistribute it and/or modify it | |
| 11 | under the terms of the GNU General Public License as published by | |
| 12 | the Free Software Foundation; either version 2 of the License, or | |
| 13 | (at your option) any later version. | |
| 14 | ||
| 15 | systemd is distributed in the hope that it will be useful, but | |
| 16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 18 | General Public License for more details. | |
| 19 | ||
| 20 | You should have received a copy of the GNU General Public License | |
| 21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
| 22 | --> | |
| 23 | ||
| ee5762e3 | 24 | <refentry id="systemctl"> |
| 7874bcd6 LP |
25 | |
| 26 | <refentryinfo> | |
| 27 | <title>systemctl</title> | |
| 28 | <productname>systemd</productname> | |
| 29 | ||
| 30 | <authorgroup> | |
| 31 | <author> | |
| 32 | <contrib>Developer</contrib> | |
| 33 | <firstname>Lennart</firstname> | |
| 34 | <surname>Poettering</surname> | |
| 35 | <email>lennart@poettering.net</email> | |
| 36 | </author> | |
| 37 | </authorgroup> | |
| 38 | </refentryinfo> | |
| 39 | ||
| 40 | <refmeta> | |
| 41 | <refentrytitle>systemctl</refentrytitle> | |
| 42 | <manvolnum>1</manvolnum> | |
| 43 | </refmeta> | |
| 44 | ||
| 45 | <refnamediv> | |
| 46 | <refname>systemctl</refname> | |
| af2d49f7 | 47 | <refpurpose>Control the systemd system and service manager</refpurpose> |
| 7874bcd6 LP |
48 | </refnamediv> |
| 49 | ||
| 50 | <refsynopsisdiv> | |
| 51 | <cmdsynopsis> | |
| 52 | <command>systemctl <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="req">COMMAND</arg> <arg choice="opt" rep="repeat">NAME</arg></command> | |
| 53 | </cmdsynopsis> | |
| 54 | </refsynopsisdiv> | |
| 55 | ||
| 56 | <refsect1> | |
| 57 | <title>Description</title> | |
| 58 | ||
| 59 | <para><command>systemctl</command> may be used to | |
| 60 | introspect and control the state of the | |
| 61 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
| af2d49f7 | 62 | system and service manager.</para> |
| 7874bcd6 LP |
63 | </refsect1> |
| 64 | ||
| 65 | <refsect1> | |
| 66 | <title>Options</title> | |
| 67 | ||
| 68 | <para>The following options are understood:</para> | |
| 69 | ||
| 70 | <variablelist> | |
| 71 | <varlistentry> | |
| 72 | <term><option>--help</option></term> | |
| 7594fb25 | 73 | <term><option>-h</option></term> |
| 7874bcd6 LP |
74 | |
| 75 | <listitem><para>Prints a short help | |
| 76 | text and exits.</para></listitem> | |
| 77 | </varlistentry> | |
| 78 | ||
| 59cddb23 LP |
79 | <varlistentry> |
| 80 | <term><option>--version</option></term> | |
| 81 | ||
| 82 | <listitem><para>Prints a short version | |
| 83 | string and exits.</para></listitem> | |
| 84 | </varlistentry> | |
| 85 | ||
| 7874bcd6 LP |
86 | <varlistentry> |
| 87 | <term><option>--type=</option></term> | |
| 7594fb25 | 88 | <term><option>-t</option></term> |
| 7874bcd6 LP |
89 | |
| 90 | <listitem><para>When listing units, | |
| 91 | limit display to certain unit | |
| 92 | types. If not specified units of all | |
| 93 | types will be shown. The argument | |
| 94 | should be a unit type name such as | |
| 95 | <option>service</option>, | |
| 96 | <option>socket</option> and | |
| 97 | similar.</para></listitem> | |
| 98 | </varlistentry> | |
| 99 | ||
| 393a2f9b LP |
100 | <varlistentry> |
| 101 | <term><option>--property=</option></term> | |
| 102 | <term><option>-p</option></term> | |
| 103 | ||
| 104 | <listitem><para>When showing | |
| 105 | unit/job/manager information, limit | |
| ee5762e3 LP |
106 | display to certain properties as |
| 107 | specified as argument. If not | |
| 108 | specified all set properties are | |
| 393a2f9b LP |
109 | shown. The argument should be a |
| 110 | property name, such as | |
| ea4a240d LP |
111 | <literal>MainPID</literal>. If |
| 112 | specified more than once all | |
| 113 | properties with the specified names | |
| 114 | are shown.</para></listitem> | |
| 393a2f9b LP |
115 | </varlistentry> |
| 116 | ||
| 7874bcd6 LP |
117 | <varlistentry> |
| 118 | <term><option>--all</option></term> | |
| 7594fb25 | 119 | <term><option>-a</option></term> |
| 7874bcd6 LP |
120 | |
| 121 | <listitem><para>When listing units, | |
| 122 | show all units, regardless of their | |
| 393a2f9b LP |
123 | state, including inactive units. When |
| 124 | showing unit/job/manager information, | |
| 125 | show all properties regardless whether | |
| 126 | they are set or not.</para></listitem> | |
| 7874bcd6 LP |
127 | </varlistentry> |
| 128 | ||
| 8fe914ec LP |
129 | <varlistentry> |
| 130 | <term><option>--full</option></term> | |
| 131 | ||
| 132 | <listitem><para>Do not ellipsize unit | |
| f73e33d9 LP |
133 | names and truncate unit descriptions |
| 134 | in the output of | |
| 8fe914ec LP |
135 | <command>list-units</command> and |
| 136 | <command>list-jobs</command>.</para></listitem> | |
| 137 | </varlistentry> | |
| 138 | ||
| 7874bcd6 | 139 | <varlistentry> |
| 90d473a1 | 140 | <term><option>--fail</option></term> |
| 7874bcd6 LP |
141 | |
| 142 | <listitem><para>If the requested | |
| ee5762e3 LP |
143 | operation conflicts with a pending |
| 144 | unfinished job, fail the command. If | |
| 145 | this is not specified the requested | |
| 146 | operation will replace the pending job, | |
| 147 | if necessary.</para></listitem> | |
| 148 | </varlistentry> | |
| 149 | ||
| 150 | <varlistentry> | |
| 151 | <term><option>--quiet</option></term> | |
| 152 | <term><option>-q</option></term> | |
| 153 | ||
| 154 | <listitem><para>Suppress output to | |
| 155 | STDOUT in | |
| 156 | <command>snapshot</command>, | |
| 3d428115 | 157 | <command>is-active</command>, |
| ee5762e3 LP |
158 | <command>enable</command> and |
| 159 | <command>disable</command>.</para></listitem> | |
| 160 | </varlistentry> | |
| 161 | ||
| 162 | <varlistentry> | |
| 163 | <term><option>--no-block</option></term> | |
| 164 | ||
| a9c72fe9 LP |
165 | <listitem><para>Do not synchronously wait for |
| 166 | the requested operation to finish. If this is | |
| 167 | not specified the job will be verified, | |
| 168 | enqueued and <command>systemctl</command> will | |
| 169 | wait until it is completed. By passing this | |
| 170 | argument it is only verified and | |
| 171 | enqueued.</para></listitem> </varlistentry> | |
| ee5762e3 | 172 | |
| 0736af98 MV |
173 | <varlistentry> |
| 174 | <term><option>--no-pager</option></term> | |
| 175 | ||
| 176 | <listitem><para>Do not pipe output into a | |
| 177 | pager.</para></listitem> | |
| 178 | </varlistentry> | |
| 179 | ||
| ee5762e3 LP |
180 | <varlistentry> |
| 181 | <term><option>--system</option></term> | |
| 182 | ||
| 183 | <listitem><para>Talk to the systemd | |
| 184 | system manager. (Default)</para></listitem> | |
| 185 | </varlistentry> | |
| 186 | ||
| 187 | <varlistentry> | |
| af2d49f7 | 188 | <term><option>--user</option></term> |
| ee5762e3 LP |
189 | |
| 190 | <listitem><para>Talk to the systemd | |
| af2d49f7 | 191 | manager of the calling user.</para></listitem> |
| 7874bcd6 LP |
192 | </varlistentry> |
| 193 | ||
| 4445a875 LP |
194 | <varlistentry> |
| 195 | <term><option>--order</option></term> | |
| 196 | <term><option>--require</option></term> | |
| 197 | ||
| 198 | <listitem><para>When used in | |
| 199 | conjunction with the | |
| 200 | <command>dot</command> command (see | |
| 201 | below), selects which dependencies are | |
| 202 | shown in the dependency graph. If | |
| 203 | <option>--order</option> is passed | |
| 204 | only dependencies of type | |
| 205 | <varname>After=</varname> or | |
| 206 | <varname>Before=</varname> are | |
| 207 | shown. If <option>--require</option> | |
| 208 | is passed only dependencies of type | |
| 209 | <varname>Requires=</varname>, | |
| 210 | <varname>RequiresOverridable=</varname>, | |
| 211 | <varname>Requisite=</varname>, | |
| 212 | <varname>RequisiteOverridable=</varname>, | |
| 213 | <varname>Wants=</varname> and | |
| 214 | <varname>Conflicts=</varname> are | |
| 215 | shown. If neither is passed, shows | |
| 216 | dependencies of all these | |
| 217 | types.</para></listitem> | |
| 218 | </varlistentry> | |
| 219 | ||
| 7874bcd6 | 220 | <varlistentry> |
| ee5762e3 | 221 | <term><option>--no-wall</option></term> |
| 7874bcd6 | 222 | |
| ee5762e3 LP |
223 | <listitem><para>Don't send wall |
| 224 | message before | |
| 225 | halt, power-off, reboot.</para></listitem> | |
| 7874bcd6 LP |
226 | </varlistentry> |
| 227 | ||
| 228 | <varlistentry> | |
| ee5762e3 LP |
229 | <term><option>--global</option></term> |
| 230 | ||
| 231 | <listitem><para>When used with | |
| 232 | <command>enable</command> and | |
| 233 | <command>disable</command>, operate on the | |
| 3d428115 | 234 | global user configuration |
| ee5762e3 LP |
235 | directory, thus enabling or disabling |
| 236 | a unit file globally for all future | |
| af2d49f7 | 237 | logins of all users.</para></listitem> |
| 7874bcd6 LP |
238 | </varlistentry> |
| 239 | ||
| 240 | <varlistentry> | |
| ee5762e3 LP |
241 | <term><option>--no-reload</option></term> |
| 242 | ||
| 243 | <listitem><para>When used with | |
| 244 | <command>enable</command> and | |
| 245 | <command>disable</command>, do not | |
| 246 | implicitly reload daemon configuration | |
| 247 | after executing the | |
| 248 | changes.</para></listitem> | |
| 249 | </varlistentry> | |
| 7594fb25 | 250 | |
| 501fc174 LP |
251 | <varlistentry> |
| 252 | <term><option>--no-ask-password</option></term> | |
| 253 | ||
| 254 | <listitem><para>When used with | |
| 255 | <command>start</command> and related | |
| 256 | commands, disables asking for | |
| 257 | passwords. Background services may | |
| 258 | require input of a password or | |
| 259 | passphrase string, for example to | |
| 260 | unlock system hard disks or | |
| 261 | cryptographic certificates. Unless | |
| 262 | this option is specified and the | |
| 263 | command is invoked from a terminal | |
| 264 | <command>systemctl</command> will | |
| 265 | query the user on the terminal for the | |
| 266 | necessary secrets. Use this option to | |
| 3d428115 | 267 | switch this behavior off. In this |
| 501fc174 LP |
268 | case the password must be supplied by |
| 269 | some other means (for example | |
| 270 | graphical password agents) or the | |
| 271 | service might fail.</para></listitem> | |
| 272 | </varlistentry> | |
| 273 | ||
| 8a0867d6 LP |
274 | <varlistentry> |
| 275 | <term><option>--kill-mode=</option></term> | |
| 276 | ||
| 277 | <listitem><para>When used with | |
| 278 | <command>kill</command>, choose the | |
| 279 | mode how to kill the selected | |
| 280 | processes. Must be one of | |
| 281 | <option>control-group</option>, | |
| 282 | <option>process-group</option> or | |
| 283 | <option>process</option> to select | |
| 284 | whether to kill the entire control | |
| 285 | group, the process group or only the | |
| 3d428115 | 286 | selected process itself. If omitted |
| 8a0867d6 LP |
287 | defaults to |
| 288 | <option>control-group</option> if | |
| 289 | <option>--kill-who=all</option> is | |
| 290 | set, or <option>process</option> | |
| 291 | otherwise. You probably never need to | |
| 292 | use this switch.</para></listitem> | |
| 293 | </varlistentry> | |
| 294 | ||
| 295 | <varlistentry> | |
| 296 | <term><option>--kill-who=</option></term> | |
| 297 | ||
| 298 | <listitem><para>When used with | |
| 299 | <command>kill</command>, choose which | |
| 300 | processes to kill. Must be one of | |
| 301 | <option>main</option>, | |
| 302 | <option>control</option> or | |
| 303 | <option>all</option> to select whether | |
| 304 | to kill only the main process of the | |
| 305 | unit, the control process or all | |
| 3d428115 | 306 | processes of the unit. If omitted |
| 8a0867d6 LP |
307 | defaults to |
| 308 | <option>all</option>.</para></listitem> | |
| 309 | </varlistentry> | |
| 310 | ||
| 311 | <varlistentry> | |
| 3d428115 | 312 | <term><option>--signal=</option></term> |
| 8a0867d6 LP |
313 | <term><option>-s</option></term> |
| 314 | ||
| 315 | <listitem><para>When used with | |
| 316 | <command>kill</command>, choose which | |
| 317 | signal to send to selected | |
| 318 | processes. Must be one of the well | |
| 3d428115 | 319 | known signal specifiers such as |
| 8a0867d6 | 320 | SIGTERM, SIGINT or SIGSTOP. If |
| 3d428115 | 321 | omitted defaults to |
| 8a0867d6 LP |
322 | <option>SIGTERM</option>.</para></listitem> |
| 323 | </varlistentry> | |
| 324 | ||
| 7594fb25 | 325 | <varlistentry> |
| ee5762e3 | 326 | <term><option>--force</option></term> |
| 6f352544 | 327 | <term><option>-f</option></term> |
| 7874bcd6 | 328 | |
| ee5762e3 LP |
329 | <listitem><para>When used with |
| 330 | <command>enable</command>, override any | |
| 331 | existing conflicting | |
| 332 | symlinks.</para></listitem> | |
| 6f352544 LP |
333 | |
| 334 | <listitem><para>When used with | |
| 335 | <command>halt</command>, | |
| 336 | <command>poweroff</command>, | |
| 337 | <command>reboot</command> or | |
| 338 | <command>kexec</command> execute | |
| 339 | selected operation without shutting | |
| 340 | down all units. However, all processes | |
| 341 | will be killed forcibly and all file | |
| 342 | systems are unmounted or remounted | |
| 343 | read-only. This is hence a drastic but | |
| 344 | relatively safe option to request an | |
| 345 | immediate reboot.</para></listitem> | |
| 7874bcd6 LP |
346 | </varlistentry> |
| 347 | ||
| 348 | <varlistentry> | |
| ee5762e3 LP |
349 | <term><option>--defaults</option></term> |
| 350 | ||
| 351 | <listitem><para>When used with | |
| 352 | <command>disable</command>, ensures | |
| 353 | that only the symlinks created by | |
| 354 | <command>enable</command> are removed, | |
| 355 | not all symlinks pointing to the unit | |
| 356 | file that shall be | |
| 357 | disabled.</para></listitem> | |
| 7874bcd6 LP |
358 | </varlistentry> |
| 359 | </variablelist> | |
| 360 | ||
| 361 | <para>The following commands are understood:</para> | |
| 362 | ||
| 363 | <variablelist> | |
| 364 | <varlistentry> | |
| 365 | <term><command>list-units</command></term> | |
| 366 | ||
| 367 | <listitem><para>List known units.</para></listitem> | |
| 368 | </varlistentry> | |
| 7874bcd6 LP |
369 | <varlistentry> |
| 370 | <term><command>start [NAME...]</command></term> | |
| 371 | ||
| ee5762e3 LP |
372 | <listitem><para>Start (activate) one |
| 373 | or more units specified on the command | |
| 7874bcd6 LP |
374 | line.</para></listitem> |
| 375 | </varlistentry> | |
| 376 | <varlistentry> | |
| 377 | <term><command>stop [NAME...]</command></term> | |
| 378 | ||
| ee5762e3 LP |
379 | <listitem><para>Stop (deactivate) one |
| 380 | or more units specified on the command | |
| 7874bcd6 LP |
381 | line.</para></listitem> |
| 382 | </varlistentry> | |
| 7874bcd6 LP |
383 | <varlistentry> |
| 384 | <term><command>reload [NAME...]</command></term> | |
| 385 | ||
| ee5762e3 LP |
386 | <listitem><para>Asks all units listed |
| 387 | on the command line to reload their | |
| 7874bcd6 | 388 | configuration. Note that this will |
| ee5762e3 LP |
389 | reload the service-specific |
| 390 | configuration, not the unit | |
| 391 | configuration file of systemd. If you | |
| 392 | want systemd to reload the | |
| 393 | configuration file of a unit use the | |
| 7874bcd6 LP |
394 | <command>daemon-reload</command> |
| 395 | command. In other words: for the | |
| 396 | example case of Apache, this will | |
| 397 | reload Apache's | |
| 398 | <filename>httpd.conf</filename> in the | |
| 399 | web server, not the | |
| 400 | <filename>apache.service</filename> | |
| ee5762e3 LP |
401 | systemd unit file. </para> |
| 402 | ||
| 403 | <para>This command should not be | |
| 404 | confused with the | |
| 405 | <command>daemon-reload</command> or | |
| 406 | <command>load</command> | |
| 7874bcd6 LP |
407 | commands.</para></listitem> |
| 408 | ||
| 409 | </varlistentry> | |
| 410 | <varlistentry> | |
| 6f28c033 LP |
411 | <term><command>restart [NAME...]</command></term> |
| 412 | ||
| 413 | <listitem><para>Restart one or more | |
| 414 | units specified on the command | |
| 415 | line. If the units are not running yet | |
| 416 | they will be | |
| 417 | started.</para></listitem> | |
| 418 | </varlistentry> | |
| 419 | <varlistentry> | |
| 420 | <term><command>try-restart [NAME...]</command></term> | |
| 421 | ||
| 422 | <listitem><para>Restart one or more | |
| 423 | units specified on the command | |
| 424 | line. If the units are not running yet | |
| 425 | the operation will | |
| 9bee76ee RB |
426 | fail. Note that for compatibility |
| 427 | with Red Hat init scripts | |
| 428 | <command>condrestart</command> is | |
| 429 | equivalent to this command.</para></listitem> | |
| 6f28c033 LP |
430 | </varlistentry> |
| 431 | <varlistentry> | |
| 432 | <term><command>reload-or-restart [NAME...]</command></term> | |
| 9bee76ee RB |
433 | |
| 434 | <listitem><para>Reload one or more | |
| 435 | units if they support it. If not, | |
| 436 | restart them instead. If the units | |
| 437 | are not running yet they will be | |
| 438 | started.</para></listitem> | |
| 439 | </varlistentry> | |
| 440 | <varlistentry> | |
| 6f28c033 LP |
441 | <term><command>reload-or-try-restart [NAME...]</command></term> |
| 442 | ||
| 443 | <listitem><para>Reload one or more | |
| ee5762e3 | 444 | units if they support it. If not, |
| 9bee76ee RB |
445 | restart them instead. If the units |
| 446 | are not running yet the operation | |
| 447 | will fail. Note that for | |
| 448 | compatibility with SysV init scripts | |
| 449 | <command>force-reload</command> is | |
| 450 | equivalent to this command.</para></listitem> | |
| 6f28c033 LP |
451 | </varlistentry> |
| 452 | <varlistentry> | |
| 7874bcd6 LP |
453 | <term><command>isolate [NAME]</command></term> |
| 454 | ||
| 455 | <listitem><para>Start the unit | |
| 456 | specified on the command line and its | |
| 25f63d46 MM |
457 | dependencies and stop all others.</para> |
| 458 | ||
| 459 | <para>This is similar to changing the | |
| 460 | runlevel in a traditional init system. The | |
| 461 | <command>isolate</command> command will | |
| 462 | immediately stop processes that are not | |
| 463 | enabled in the new unit, possibly including | |
| 464 | the graphical environment or terminal you | |
| 465 | are currently using.</para> | |
| 466 | ||
| 467 | <para>Note that this works only on units | |
| 468 | where <option>AllowIsolate=</option> is | |
| 2528a7a6 LP |
469 | enabled. See |
| 470 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry> | |
| 471 | for details.</para></listitem> | |
| 7874bcd6 | 472 | </varlistentry> |
| 8a0867d6 LP |
473 | <varlistentry> |
| 474 | <term><command>kill [NAME...]</command></term> | |
| 475 | ||
| 476 | <listitem><para>Send a signal to one | |
| 477 | or more processes of the unit. Use | |
| 478 | <option>--kill-who=</option> to select | |
| 479 | which process to kill. Use | |
| 480 | <option>--kill-mode=</option> to | |
| 481 | select the kill mode and | |
| 482 | <option>--signal=</option> to select | |
| 483 | the signal to send.</para></listitem> | |
| 484 | </varlistentry> | |
| 7594fb25 | 485 | <varlistentry> |
| ee5762e3 | 486 | <term><command>is-active [NAME...]</command></term> |
| 7594fb25 LP |
487 | |
| 488 | <listitem><para>Check whether any of | |
| 3d428115 | 489 | the specified units are active |
| ee5762e3 LP |
490 | (i.e. running). Returns an exit code |
| 491 | 0 if at least one is active, non-zero | |
| 7594fb25 LP |
492 | otherwise. Unless |
| 493 | <option>--quiet</option> is specified | |
| 494 | this will also print the current unit | |
| 495 | state to STDOUT.</para></listitem> | |
| 496 | </varlistentry> | |
| 61cbdc4b | 497 | <varlistentry> |
| 75676b72 | 498 | <term><command>status [NAME...|PID...]</command></term> |
| 61cbdc4b | 499 | |
| ee5762e3 LP |
500 | <listitem><para>Show terse runtime |
| 501 | status information about one or more | |
| 502 | units. This function is intended to | |
| 503 | generate human-readable output. If you | |
| 504 | are looking for computer-parsable | |
| 505 | output, use <command>show</command> | |
| 75676b72 LP |
506 | instead. If a PID is passed |
| 507 | information about the unit the process | |
| 508 | of the PID belongs to is | |
| 509 | shown.</para></listitem> | |
| 61cbdc4b | 510 | </varlistentry> |
| 393a2f9b LP |
511 | <varlistentry> |
| 512 | <term><command>show [NAME...|JOB...]</command></term> | |
| 513 | ||
| ee5762e3 LP |
514 | <listitem><para>Show properties of one |
| 515 | or more units, jobs or the manager | |
| 393a2f9b | 516 | itself. If no argument is specified |
| 61cbdc4b | 517 | properties of the manager will be |
| 393a2f9b | 518 | shown. If a unit name is specified |
| ee5762e3 LP |
519 | properties of the unit is shown, and |
| 520 | if a job id is specified properties of | |
| 521 | the job is shown. By default, empty | |
| 522 | properties are suppressed. Use | |
| 523 | <option>--all</option> to show those | |
| 524 | too. To select specific properties to | |
| 525 | show use | |
| 526 | <option>--property=</option>. This | |
| 527 | command is intended to be used | |
| 528 | whenever computer-parsable output is | |
| 529 | required. Use | |
| 530 | <command>status</command> if you are | |
| 531 | looking for formatted human-readable | |
| 532 | output.</para></listitem> | |
| 393a2f9b | 533 | </varlistentry> |
| 5632e374 LP |
534 | |
| 535 | <varlistentry> | |
| 74ac3cbd MM |
536 | <term><command>reset-failed [NAME...]</command></term> |
| 537 | ||
| 538 | <listitem><para>Reset the | |
| 539 | '<literal>failed</literal>' state of the | |
| 540 | specified units, or if no unit name is | |
| 541 | passed of all units. When a unit fails | |
| 542 | in some way (i.e. process exiting with | |
| 543 | non-zero error code, terminating | |
| 544 | abnormally or timing out) it will | |
| 545 | automatically enter the | |
| 546 | '<literal>failed</literal>' state and | |
| 547 | its exit code and status is recorded | |
| 548 | for introspection by the administrator | |
| 5632e374 LP |
549 | until the service is restarted or |
| 550 | reset with this | |
| 551 | command.</para></listitem> | |
| 552 | </varlistentry> | |
| 553 | ||
| ee5762e3 LP |
554 | <varlistentry> |
| 555 | <term><command>enable [NAME...]</command></term> | |
| 556 | ||
| 557 | <listitem><para>Enable one or more | |
| 558 | unit files, as specified on the | |
| 559 | command line. This will create a | |
| 560 | number of symlinks as encoded in the | |
| 561 | <literal>[Install]</literal> sections | |
| 562 | of the unit files. After the symlinks | |
| 563 | have been created the systemd | |
| 564 | configuration is reloaded (in a way | |
| 565 | that is equivalent to | |
| 566 | <command>daemon-reload</command>) to | |
| 567 | ensure the changes are taken into | |
| 568 | account immediately. Note that this | |
| 569 | does not have the effect that any of | |
| 570 | the units enabled are also started at | |
| 571 | the same time. If this is desired a | |
| 96d4ce01 | 572 | separate <command>start</command> |
| ee5762e3 LP |
573 | command must be invoked for the |
| 574 | unit.</para> | |
| 575 | ||
| 576 | <para>This command will | |
| 577 | print the actions executed. This | |
| 578 | output may be suppressed by passing | |
| 579 | <option>--quiet</option>.</para> | |
| 580 | ||
| 581 | <para>Note that this operation creates | |
| 582 | only the suggested symlinks for the | |
| 583 | units. While this command is the | |
| 584 | recommended way to manipulate the unit | |
| 585 | configuration directory, the | |
| 586 | administrator is free to make | |
| 587 | additional changes manually, by | |
| 588 | placing or removing symlinks in the | |
| 3d428115 | 589 | directory. This is particularly useful |
| ee5762e3 LP |
590 | to create configurations that deviate |
| 591 | from the suggested default | |
| 592 | installation. In this case the | |
| 593 | administrator must make sure to invoke | |
| 594 | <command>daemon-reload</command> | |
| 595 | manually as necessary, to ensure his | |
| 596 | changes are taken into account.</para> | |
| 597 | ||
| 598 | <para>Enabling units should not be | |
| 599 | confused with starting (activating) | |
| 600 | units, as done by the | |
| 601 | <command>start</command> | |
| 602 | command. Enabling and starting units | |
| 603 | is orthogonal: units may be enabled | |
| 604 | without being started and started | |
| 605 | without being enabled. Enabling simply | |
| 606 | hooks the unit into various suggested | |
| 607 | places (for example, so that the unit | |
| 608 | is automatically started on boot or | |
| 609 | when a particular kind of hardware is | |
| 610 | plugged in). Starting actually spawns | |
| 611 | the daemon process (in case of service | |
| 612 | units), or binds the socket (in case | |
| 613 | of socket units), and so | |
| 614 | on.</para> | |
| 615 | ||
| 616 | <para>Depending on whether | |
| 617 | <option>--system</option>, | |
| af2d49f7 | 618 | <option>--user</option> or |
| ee5762e3 LP |
619 | <option>--global</option> is specified |
| 620 | this enables the unit for the system, | |
| af2d49f7 LP |
621 | for the calling user only |
| 622 | or for all future logins of all | |
| ee5762e3 LP |
623 | users. Note that in the latter case no |
| 624 | systemd daemon configuration is | |
| 625 | reloaded.</para> | |
| 626 | </listitem> | |
| 627 | </varlistentry> | |
| 628 | ||
| 629 | <varlistentry> | |
| 630 | <term><command>disable [NAME...]</command></term> | |
| 631 | ||
| 632 | <listitem><para>Disables one or more | |
| 633 | units. This removes all symlinks to | |
| 634 | the specified unit files from the unit | |
| 635 | configuration directory, and hence | |
| 636 | undoes the changes made by | |
| 637 | <command>enable</command>. Note | |
| 638 | however that this by default removes | |
| 639 | all symlinks to the unit files | |
| 640 | (i.e. including manual additions), not | |
| 641 | just those actually created by | |
| 642 | <command>enable</command>. If only the | |
| 643 | symlinks that are suggested by default | |
| 644 | shall be removed, pass | |
| 645 | <option>--defaults</option>. This | |
| 646 | implicitly reloads the systemd daemon | |
| 647 | configuration after completing the | |
| 648 | disabling of the units. Note that this | |
| 649 | command does not implicitly stop the | |
| 650 | units that is being disabled. If this | |
| 651 | is desired an additional | |
| 652 | <command>stop</command>command should | |
| 653 | be executed afterwards.</para> | |
| 654 | ||
| 655 | <para>This command will print the | |
| 656 | actions executed. This output may be | |
| 657 | suppressed by passing | |
| 658 | <option>--quiet</option>.</para> | |
| 659 | </listitem> | |
| 660 | ||
| 3d428115 | 661 | <para>This command honors |
| ee5762e3 | 662 | <option>--system</option>, |
| af2d49f7 | 663 | <option>--user</option>, |
| ee5762e3 LP |
664 | <option>--global</option> in a similar |
| 665 | way as | |
| 666 | <command>enable</command>.</para> | |
| 667 | </varlistentry> | |
| 668 | ||
| 669 | <varlistentry> | |
| 670 | <term><command>is-enabled [NAME...]</command></term> | |
| 671 | ||
| 672 | <listitem><para>Checks whether any of | |
| 673 | the specified unit files is enabled | |
| 674 | (as with | |
| 675 | <command>enable</command>). Returns an | |
| 676 | exit code of 0 if at least one is | |
| 677 | enabled, non-zero | |
| 678 | otherwise.</para></listitem> | |
| 679 | </varlistentry> | |
| 680 | ||
| 393a2f9b LP |
681 | <varlistentry> |
| 682 | <term><command>load [NAME...]</command></term> | |
| 683 | ||
| 684 | <listitem><para>Load one or more units | |
| 685 | specified on the command line. This | |
| 686 | will simply load their configuration | |
| 687 | from disk, but not start them. To | |
| 688 | start them you need to use the | |
| 689 | <command>start</command> command which | |
| 690 | will implicitly load a unit that has | |
| 691 | not been loaded yet. Note that systemd | |
| 692 | garbage collects loaded units that are | |
| 693 | not active or referenced by an active | |
| 694 | unit. This means that units loaded | |
| 695 | this way will usually not stay loaded | |
| 696 | for long. Also note that this command | |
| 697 | cannot be used to reload unit | |
| 698 | configuration. Use the | |
| 699 | <command>daemon-reload</command> | |
| 700 | command for that. All in all, this | |
| 701 | command is of little use except for | |
| 702 | debugging.</para> | |
| 703 | <para>This command should not be | |
| 704 | confused with the | |
| 705 | <command>daemon-reload</command> or | |
| 706 | <command>reload</command> | |
| 707 | commands.</para></listitem> | |
| 708 | </varlistentry> | |
| 709 | <varlistentry> | |
| 710 | <term><command>list-jobs</command></term> | |
| 711 | ||
| 712 | <listitem><para>List jobs that are in progress.</para></listitem> | |
| 713 | </varlistentry> | |
| 714 | <varlistentry> | |
| 715 | <term><command>cancel [JOB...]</command></term> | |
| 716 | ||
| 717 | <listitem><para>Cancel one or more | |
| 718 | jobs specified on the command line by | |
| 719 | their numeric job | |
| 3d428115 | 720 | IDs. If no job id is specified, cancel all pending jobs.</para></listitem> |
| 393a2f9b | 721 | </varlistentry> |
| 7874bcd6 LP |
722 | <varlistentry> |
| 723 | <term><command>monitor</command></term> | |
| 724 | ||
| 725 | <listitem><para>Monitor unit/job | |
| 726 | changes. This is mostly useful for | |
| 727 | debugging purposes and prints a line | |
| 728 | each time systemd loads or unloads a | |
| 729 | unit configuration file, or a unit | |
| 730 | property changes.</para></listitem> | |
| 731 | </varlistentry> | |
| 732 | <varlistentry> | |
| 733 | <term><command>dump</command></term> | |
| 734 | ||
| 735 | <listitem><para>Dump server | |
| 736 | status. This will output a (usually | |
| 737 | very long) human readable manager | |
| 738 | status dump. Its format is subject to | |
| 739 | change without notice and should not | |
| 740 | be parsed by | |
| 741 | applications.</para></listitem> | |
| 742 | </varlistentry> | |
| 4445a875 LP |
743 | <varlistentry> |
| 744 | <term><command>dot</command></term> | |
| 745 | ||
| 746 | <listitem><para>Generate textual | |
| 747 | dependency graph description in dot | |
| 748 | format for further processing with the | |
| 749 | GraphViz | |
| 750 | <citerefentry><refentrytitle>dot</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
| 751 | tool. Use a command line like | |
| 752 | <command>systemctl dot | dot -Tsvg > | |
| 753 | systemd.svg</command> to generate a | |
| 754 | graphical dependency tree. Unless | |
| 755 | <option>--order</option> or | |
| 756 | <option>--require</option> is passed | |
| 757 | the generated graph will show both | |
| 758 | ordering and requirement | |
| 759 | dependencies.</para></listitem> | |
| 760 | </varlistentry> | |
| 7874bcd6 LP |
761 | <varlistentry> |
| 762 | <term><command>snapshot [NAME]</command></term> | |
| 763 | ||
| 764 | <listitem><para>Create a snapshot. If | |
| af62c704 | 765 | a snapshot name is specified, the new |
| 7874bcd6 LP |
766 | snapshot will be named after it. If |
| 767 | none is specified an automatic | |
| 768 | snapshot name is generated. In either | |
| 7594fb25 LP |
769 | case, the snapshot name used is |
| 770 | printed to STDOUT, unless | |
| 771 | <option>--quiet</option> is | |
| 772 | specified.</para> | |
| 7874bcd6 LP |
773 | |
| 774 | <para>A snapshot refers to a saved | |
| 775 | state of the systemd manager. It is | |
| 3d428115 | 776 | implemented itself as a unit that is |
| 7874bcd6 LP |
777 | generated dynamically with this |
| 778 | command and has dependencies on all | |
| 779 | units active at the time. At a later | |
| 780 | time the user may return to this state | |
| 781 | by using the | |
| 782 | <command>isolate</command> command on | |
| 783 | the snapshot unit.</para></listitem> | |
| 784 | ||
| 785 | <para>Snapshots are only useful for | |
| 786 | saving and restoring which units are | |
| 787 | running or are stopped, they do not | |
| 788 | save/restore any other | |
| 789 | state. Snapshots are dynamic and lost | |
| 790 | on reboot.</para> | |
| 791 | </varlistentry> | |
| 792 | <varlistentry> | |
| 6759e7a7 LP |
793 | <term><command>delete [NAME...]</command></term> |
| 794 | ||
| 795 | <listitem><para>Remove a snapshot | |
| 796 | previously created with | |
| 797 | <command>snapshot</command>.</para></listitem> | |
| 798 | </varlistentry> | |
| 799 | <varlistentry> | |
| 7874bcd6 LP |
800 | <term><command>daemon-reload</command></term> |
| 801 | ||
| 802 | <listitem><para>Reload systemd manager | |
| 803 | configuration. This will reload all | |
| 804 | unit files and recreate the entire | |
| 805 | dependency tree. While the daemon is | |
| af62c704 | 806 | reloaded, all sockets systemd listens |
| ad678a06 | 807 | on on behalf of user configuration will |
| 7874bcd6 LP |
808 | stay accessible.</para> <para>This |
| 809 | command should not be confused with | |
| 810 | the <command>load</command> or | |
| 811 | <command>reload</command> | |
| 812 | commands.</para></listitem> | |
| 813 | </varlistentry> | |
| 814 | <varlistentry> | |
| 815 | <term><command>daemon-reexec</command></term> | |
| 816 | ||
| 817 | <listitem><para>Reexecute the systemd | |
| 818 | manager. This will serialize the | |
| 819 | manager state, reexecute the process | |
| 820 | and deserialize the state again. This | |
| 821 | command is of little use except for | |
| 822 | debugging and package | |
| 823 | upgrades. Sometimes it might be | |
| 824 | helpful as a heavy-weight | |
| 825 | <command>daemon-reload</command>. While | |
| 826 | the daemon is reexecuted all sockets | |
| 827 | systemd listens on on behalf of user | |
| 828 | configuration will stay | |
| 829 | accessible.</para></listitem> | |
| 830 | </varlistentry> | |
| 7874bcd6 LP |
831 | <varlistentry> |
| 832 | <term><command>show-environment</command></term> | |
| 833 | ||
| 834 | <listitem><para>Dump the systemd | |
| 835 | manager environment block. The | |
| 836 | environment block will be dumped in | |
| 837 | straight-forward form suitable for | |
| 838 | sourcing into a shell script. This | |
| 839 | environment block will be passed to | |
| 840 | all processes the manager | |
| 841 | spawns.</para></listitem> | |
| 842 | </varlistentry> | |
| 843 | <varlistentry> | |
| 844 | <term><command>set-environment [NAME=VALUE...]</command></term> | |
| 845 | ||
| 846 | <listitem><para>Set one or more | |
| 847 | systemd manager environment variables, | |
| 848 | as specified on the command | |
| 849 | line.</para></listitem> | |
| 850 | </varlistentry> | |
| 851 | <varlistentry> | |
| 852 | <term><command>unset-environment [NAME...]</command></term> | |
| 853 | ||
| 854 | <listitem><para>Unset one or more | |
| 855 | systemd manager environment | |
| 856 | variables. If only a variable name is | |
| 857 | specified it will be removed | |
| 858 | regardless of its value. If a variable | |
| 859 | and a value are specified the variable | |
| 860 | is only removed if it has the | |
| 861 | specified value.</para></listitem> | |
| 862 | </varlistentry> | |
| 59cddb23 LP |
863 | <varlistentry> |
| 864 | <term><command>default</command></term> | |
| 865 | ||
| 866 | <listitem><para>Enter default | |
| 867 | mode. This is mostly equivalent to | |
| 868 | <command>start | |
| 869 | default.target</command>.</para></listitem> | |
| 870 | </varlistentry> | |
| 871 | <varlistentry> | |
| 872 | <term><command>rescue</command></term> | |
| 873 | ||
| 874 | <listitem><para>Enter rescue | |
| 875 | mode. This is mostly equivalent to | |
| 876 | <command>isolate | |
| 877 | rescue.target</command> but also | |
| 878 | prints a wall message to all | |
| 879 | users.</para></listitem> | |
| 880 | </varlistentry> | |
| 881 | <varlistentry> | |
| 882 | <term><command>emergency</command></term> | |
| 7874bcd6 | 883 | |
| 59cddb23 LP |
884 | <listitem><para>Enter emergency |
| 885 | mode. This is mostly equivalent to | |
| 886 | <command>isolate | |
| 887 | emergency.target</command> but also | |
| 888 | prints a wall message to all | |
| 889 | users.</para></listitem> | |
| 890 | </varlistentry> | |
| 7874bcd6 LP |
891 | <varlistentry> |
| 892 | <term><command>halt</command></term> | |
| 893 | ||
| 894 | <listitem><para>Shut down and halt the | |
| 895 | system. This is mostly equivalent to | |
| 896 | <command>start halt.target</command> | |
| 897 | but also prints a wall message to all | |
| 59cddb23 LP |
898 | users. If |
| 899 | combined with <option>--force</option> | |
| 900 | shutdown of all running services is | |
| 3d428115 RB |
901 | skipped, however all processes are killed |
| 902 | and all file systems are unmounted or | |
| 59cddb23 LP |
903 | mounted read-only, immediately |
| 904 | followed by the | |
| 905 | system halt.</para></listitem> | |
| 7874bcd6 LP |
906 | </varlistentry> |
| 907 | <varlistentry> | |
| 908 | <term><command>poweroff</command></term> | |
| 909 | ||
| 910 | <listitem><para>Shut down and | |
| 911 | power-off the system. This is mostly | |
| 912 | equivalent to <command>start | |
| 913 | poweroff.target</command> but also | |
| 914 | prints a wall message to all | |
| 59cddb23 LP |
915 | users. If |
| 916 | combined with <option>--force</option> | |
| 917 | shutdown of all running services is | |
| 3d428115 RB |
918 | skipped, however all processes are killed |
| 919 | and all file systems are unmounted or | |
| 59cddb23 LP |
920 | mounted read-only, immediately |
| 921 | followed by the | |
| 922 | powering off.</para></listitem> | |
| 7874bcd6 LP |
923 | </varlistentry> |
| 924 | <varlistentry> | |
| 925 | <term><command>reboot</command></term> | |
| 926 | ||
| 927 | <listitem><para>Shut down and | |
| 928 | reboot the system. This is mostly | |
| 929 | equivalent to <command>start | |
| 930 | reboot.target</command> but also | |
| 931 | prints a wall message to all | |
| 59cddb23 LP |
932 | users. If |
| 933 | combined with <option>--force</option> | |
| 934 | shutdown of all running services is | |
| 3d428115 RB |
935 | skipped, however all processes are killed |
| 936 | and all file systems are unmounted or | |
| 59cddb23 LP |
937 | mounted read-only, immediately |
| 938 | followed by the | |
| 939 | reboot.</para></listitem> | |
| 7874bcd6 LP |
940 | </varlistentry> |
| 941 | <varlistentry> | |
| 59cddb23 | 942 | <term><command>kexec</command></term> |
| 7874bcd6 | 943 | |
| 59cddb23 LP |
944 | <listitem><para>Shut down and reboot |
| 945 | the system via kexec. This is mostly | |
| 946 | equivalent to <command>start | |
| 947 | kexec.target</command> but also prints | |
| 948 | a wall message to all users. If | |
| 949 | combined with <option>--force</option> | |
| 950 | shutdown of all running services is | |
| 3d428115 RB |
951 | skipped, however all processes are killed |
| 952 | and all file systems are unmounted or | |
| 59cddb23 LP |
953 | mounted read-only, immediately |
| 954 | followed by the | |
| 955 | reboot.</para></listitem> | |
| 7874bcd6 LP |
956 | </varlistentry> |
| 957 | <varlistentry> | |
| 59cddb23 | 958 | <term><command>exit</command></term> |
| 7874bcd6 | 959 | |
| 59cddb23 LP |
960 | <listitem><para>Ask the systemd |
| 961 | manager to quit. This is only | |
| af2d49f7 | 962 | supported for user service managers |
| 59cddb23 | 963 | (i.e. in conjunction with the |
| af2d49f7 | 964 | <option>--user</option> option) and |
| 59cddb23 | 965 | will fail otherwise.</para></listitem> |
| 7874bcd6 LP |
966 | </varlistentry> |
| 967 | </variablelist> | |
| 968 | ||
| 969 | </refsect1> | |
| 970 | ||
| 971 | <refsect1> | |
| 972 | <title>Exit status</title> | |
| 973 | ||
| 974 | <para>On success 0 is returned, a non-zero failure | |
| 975 | code otherwise.</para> | |
| 976 | </refsect1> | |
| 977 | ||
| 978 | <refsect1> | |
| 979 | <title>See Also</title> | |
| 980 | <para> | |
| 981 | <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
| 982 | <citerefentry><refentrytitle>systemadm</refentrytitle><manvolnum>1</manvolnum></citerefentry>, | |
| 983 | <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>, | |
| 984 | <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>, | |
| 985 | <citerefentry><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry> | |
| 986 | </para> | |
| 987 | </refsect1> | |
| 988 | ||
| 989 | </refentry> |