refactor + add openrc

technology/linux/openrc.md

@@ -7,4 +7,85 @@ source: https://wiki.alpinelinux.org/wiki/OpenRC
 ---
 
 # openRC
-#wip #🐇 
+OpenRC is a dependency-based init system that works with the system-provided init program
+
+The following commands are available to manage the init system:
+
+- Basics:
+```shell
+rc-update add <service> <runlevel>
+
+rc-update del <service> <runlevel>
+
+rc-service <service> <start stop restart>
+```
+- To check services and their set runlevels:
+```shell
+rc-status
+```
+
+## rc-update usage
+```
+Usage: rc-update [options] add service <runlevel>
+       rc-update [options] del service <runlevel>
+       rc-update [options] show
+
+Options: [suChqv]
+  -s, --stack                       Stack a runlevel instead of a service
+  -u, --update                      Force an update of the dependency tree
+  -h, --help                        Display this help output
+  -C, --nocolor                     Disable color output
+  -v, --verbose                     Run verbosely
+  -q, --quiet                       Run quietly
+```
+
+## rc-status usage
+```
+Usage: rc-status [options] [runlevel1] [runlevel2] ...
+
+Options: [aclrsuChqv]
+  -a, --all                         Show services from all run levels
+  -c, --crashed                     Show crashed services
+  -l, --list                        Show list of run levels
+  -r, --runlevel                    Show the name of the current runlevel
+  -s, --servicelist                 Show service list
+  -u, --unused                      Show services not assigned to any runlevel
+  -h, --help                        Display this help output
+  -C, --nocolor                     Disable color output
+  -v, --verbose                     Run verbosely
+  -q, --quiet                       Run quietly
+```
+
+## rc-service usage
+```
+Usage: rc-service [options]
+
+Options: [e:ilr:ChqVv]
+  -e, --exists <arg>                tests if the service exists or not
+  -i, --ifexists                    if the service exists then run the command
+  -l, --list                        list all available services
+  -r, --resolve <arg>               resolve the service name to an init script
+  -h, --help                        Display this help output
+  -C, --nocolor                     Disable color output
+  -V, --version                     Display software version
+  -v, --verbose                     Run verbosely
+  -q, --quiet                       Run quietly
+```
+
+## rc usage
+```
+Usage: rc [options]
+
+Options: [a:o:s:SChqVv]
+  -a, --applet <arg>                runs the applet specified by the next argument
+  -o, --override <arg>              override the next runlevel to change into
+                                    when leaving single user or boot runlevels
+  -s, --service <arg>               runs the service specified with the rest
+                                    of the arguments
+  -S, --sys                         output the RC system type, if any
+  -h, --help                        Display this help output
+  -C, --nocolor                     Disable color output
+  -V, --version                     Display software version
+  -v, --verbose                     Run verbosely
+  -q, --quiet                       Run quietly
+```