shutdown, reboot linux box

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