Run Level Commands
1. Shutdown
o init 0
o shutdown -h now
+ -a: Use file /etc/shutdown.allow
+ -c: Cancel scheduled shutdown.
o halt -p
+ -p: Turn power off after shutdown.
o poweroff
o init 0
o shutdown -h now
+ -a: Use file /etc/shutdown.allow
+ -c: Cancel scheduled shutdown.
o halt -p
+ -p: Turn power off after shutdown.
o poweroff
2.Reboot
o init 6
o shutdown -r now
o reboot
3.Enter single user mode:
o init 1