Cheatsheet
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INFORMATION LOGS
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systemctl journalctl
list-dependencies -u <name> by service
list-sockets -f follow live log
list-jobs -k kernel messages
list-unit-files -k kernel messages
list-units -r reverse (newest first)
get-default -o json format output
--type=service --all -b -1 from previous boot
-n 10 limit output lines (tail)
========================================== -S,--since e.g "2012-10-30 18:17:16"
SERVICES -U,--until e.g. "10 min ago"
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systemctl ==========================================
stop <name> SYSTEM STATES
start <name> ==========================================
restart <name>
reload <name> systemctl
status <name> reboot reboot.target
enable <name> poweroff poweroff.target
disable <name> emergency emergency.target
show <name> default default.target
-H <host> status network