X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=man%2Fsystemctl.xml;h=61a23de7d7ef1150fd45e8978a313dcb50e29c52;hb=e4c691b59db60ef2e6d8e64766d6ae02cd0dd457;hp=94f238041a8a71253201c8eeab84a52d2e8d1d41;hpb=af7424af70d063412c09b0125f4d4a39865210dc;p=elogind.git diff --git a/man/systemctl.xml b/man/systemctl.xml index 94f238041..61a23de7d 100644 --- a/man/systemctl.xml +++ b/man/systemctl.xml @@ -60,10 +60,12 @@ along with systemd; If not, see . Description - systemctl may be used to - introspect and control the state of the + systemctl may be used to introspect and + control the state of the systemd system and + service manager. Please refer to systemd1 - system and service manager. + for an introduction into the basic concepts and functionality this + tool manages. @@ -230,8 +232,10 @@ along with systemd; If not, see . If replace-irreversibly is specified, operate like replace, but also mark the new jobs as irreversible. This prevents future conflicting - transactions from replacing these jobs. The jobs can still be - cancelled using the cancel command. + transactions from replacing these jobs (or even being enqueued + while the irreversible jobs are still pending). Irreversible + jobs can still be cancelled using the cancel + command. isolate is only valid for start operations and causes all other units to be stopped when the @@ -286,6 +290,8 @@ along with systemd; If not, see . snapshot, is-active, is-failed, + is-enabled, + is-system-running, enable and disable. @@ -385,17 +391,17 @@ along with systemd; If not, see . control processes. Note that there is only one control process per unit at a time, as only one state change is executed at a time. For services of type - Type=forking the initial process started + Type=forking, the initial process started by the manager for ExecStart= is a control process, while the process ultimately forked off by that one is then considered the main process of the unit (if it can be determined). This is different for service units of other types, where the process forked off by the manager for ExecStart= is always the main process - itself. A service unit consists of no or one main process, - no or one control process plus any number of additional + itself. A service unit consists of zero or one main process, + zero or one control process plus any number of additional processes. Not all unit types manage processes of these - types however. For example for mount units control processes + types however. For example, for mount units, control processes are defined (which are the invocations of /usr/bin/mount and /usr/bin/umount), but no main process @@ -435,7 +441,7 @@ along with systemd; If not, see . safe option to request an immediate reboot. If is specified twice for these operations, they will be executed immediately without - terminating any processes or umounting any file + terminating any processes or unmounting any file systems. Warning: specifying twice with any of these operations might result in data loss. @@ -474,6 +480,20 @@ along with systemd; If not, see . + + + + + Takes one of full (the default), + enable-only, + disable-only. When used with the + preset or preset-all + commands, controls whether units shall be disabled and + enabled according to the preset rules, or only enabled, or + only disabled. + + + @@ -619,8 +639,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service file. This command should not be confused with the - daemon-reload or load - commands. + daemon-reload command. @@ -724,7 +743,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service Show terse runtime status information about one or more units, followed by most recent log data from the journal. If no units are specified, show system status. If - combined with also shows status of + combined with , also show the status of all units (subject to limitations specified with ). If a PID is passed, show information about the unit the process belongs to. @@ -905,6 +924,9 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service the system, or for all future logins of all users, or only this boot. Note that in the last case, no systemd daemon configuration is reloaded. + + Using enable on masked units + results in an error. @@ -1023,16 +1045,35 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service command line, to the defaults configured in the preset policy files. This has the same effect as disable or enable, - depending how the unit is listed in the preset files. For - more information on the preset policy format, see + depending how the unit is listed in the preset files. + + Use to control + whether units shall be enabled and disabled, or only + enabled, or only disabled. + + For more information on the preset policy format, + see systemd.preset5. For more information on the concept of presets, please - consult the - Preset + consult the Preset document. + + preset-all + + + Resets all installed unit files to the defaults + configured in the preset policy file (see above). + + Use to control + whether units shall be enabled and disabled, or only + enabled, or only disabled. + + + mask NAME... @@ -1042,10 +1083,10 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service /dev/null, making it impossible to start them. This is a stronger version of disable, since it prohibits all kinds of - activation of the unit, including manual activation. Use - this option with care. This honors the + activation of the unit, including enablement and manual + activation. Use this option with care. This honors the option to only mask temporarily - until the next reoobt of the system. + until the next reboot of the system. @@ -1059,6 +1100,25 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service + + add-wants TARGET + NAME... + add-requires TARGET + NAME... + + + Adds Wants= resp. Requires= + dependency to the specified TARGET for + one or more units. + + This command honors , + , and + in a similar way as + enable. + + + + link FILENAME... @@ -1237,10 +1297,9 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service Reload systemd manager configuration. This will reload all unit files and recreate the entire dependency tree. While the daemon is being reloaded, all sockets systemd - listens on on behalf of user configuration will stay + listens on behalf of user configuration will stay accessible. This command should not be confused - with the load or - reload commands. + with the reload command. @@ -1264,6 +1323,20 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service System Commands + + is-system-running + + + Checks whether the system is running. This returns + success when the system is fully up and running, meaning + not in startup, shutdown or maintenance mode. Failure is + returned otherwise. In addition, the current state is + printed in a short string to standard output. Use + to suppress output of this state + string. + + + default @@ -1272,6 +1345,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service isolate default.target. + rescue @@ -1425,7 +1499,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service Parameter Syntax - Unit ommands listed above take either a single unit name + Unit commands listed above take either a single unit name (designated as NAME), or multiple unit specifications (designated as PATTERN...). In the first case, the @@ -1497,7 +1571,7 @@ kobject-uevent 1 systemd-udevd-kernel.socket systemd-udevd.service systemd.unit5, systemd.resource-management5, systemd.special7, - wall1, + wall1, systemd.preset5 glob7