3. Learning progress and task of self-study--linux "commands for System Management classes"

Commands for System Management classes

commands for the System Management class :

#  shutdown (command) [option] ... Time
-r :   Restart
h: shut down
-c :   Cancel restart or shutdown command

time format:
     now
Span style= "font-size:14pt" >       +# : #分钟以后
hh:mm :   Shut down at the specified time

#  reboot:   Restart host operation

　　　　　　　　　　- P: Call shutdown to complete itself, shut down and then power down
　　　　　　　　　　- F: Do not call shutdown, forced shutdown, do not recommend the use of this

　　　　　　# Halt: Perform shutdown operation, but will not power off
　　　　　　# Poweroff: Power off

3. Learning progress and task of self-study--linux "commands for System Management classes"