CentOS shutdown, restart, logout command detailed

The 1,shutdown command will safely shut down the system.

Common parameters:

Shutdown now:-H is the system shuts down immediately. Instance

[Email protected] tianhao]# shutdown-h now

[Email protected] tianhao]# shutdown now

Specify time to shut down: The time parameter can specify when to shut down, or how long to shut down the computer. Instance

[[email protected] tianhao]# shutdown +5//5 min after shutdown

[[email protected] tianhao]# shutdown 10:30//10:30 shutdown

Restart after shutdown:-R to set shutdown and restart. Instance

[[email protected] tianhao]# Shutdown-r now//close system immediately

[[email protected] tianhao]# shutdown-r 23:50//restart system at 23 Point 50

2,halt the simplest shutdown command

Halt is actually called the Shutdown-h

Common parameters:

-F Force shutdown without calling shutdown

3,reboot

Similar to halt, but the difference is that reboot triggers a host reboot, and Halt is shutdown

4,init

Very powerful command, is the ancestor of all processes below only a few common

Init 0 shutdown

Init 1 Single user, mode (typically used when changing power-on passwords and system outages)

Init 6 Restart

5,logout logoff

For this command logout, it is not available in CentOS,

Tip: Bash:logout:not login shell:use ' exit '

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CentOS shutdown, restart, logout command detailed