shutdown

Question 1

shutdown

Answer 1

Brings the system down in a secure way.

The format is:

hh:mm

or

+n

Question 2

shutdown -H

• P
• r
• h
• k

–no-wall

-c

Answer 2

• H or –halt, Halt the machine
• P or –poweroff, Power-off the machine
• r or –reboot, Reboot the machine
• h, equivalent to poweroff
• k, Do not poweroff, reboot, or halt, just write wall message

–no-wall, Do not send message before shutdown

-c, Cancel pending shutdown