"try-restart:Restart one or more units if active"
"reload-or-restart:Reload one or more units if possible, otherwise start or restart"
"force-reload:Reload one or more units if possible, otherwise restart if active"
+ "hibernate:Hibernate the system"
+ "hybrid-sleep:Hibernate and suspend the system"
"reload-or-try-restart:Reload one or more units if possible, otherwise restart if active"
"isolate:Start one unit and stop all others"
"kill:Send signal to processes of a unit"