Linux shutdown correct method

Steps:

1who See who online, netstat-a look at the network connection status, PS aux see background execution program

2sync data synchronously written to disk

3shutdown command shutdown or restart

Note: Shutdown can be switched off or restarted, common parameters-h,-r

Example

Shutdown-h now shut down the machine.

Shutdown-h 20:8-point shutdown

Shutdown-h +10 10 minutes after shutdown

Shutdown-r now restart

Shutdown-r +30 30 minutes after restart

In addition to shutdown can shutdown, there are halt,poweroff can be shut down, in fact, there is also the Init 0 can be shut down.

We all know that there are seven operating levels, to know now at which operating level, you can use RunLevel generally will appear 5 or 3 of the number, on behalf of us in the run Level 5 or 3 mode, to switch the operating level can be used with the Init 0 (1,2,3,4,5,6), The meanings of each operating level are as follows:

Init 0 means shutdown

Init 1 Single-User maintenance mode

Init 2 No network command-line mode

Init 3 has network command-line mode

Init 4 Standby

Init 5 command-line mode with graphical interface

Init 6 Restart

Linux shutdown correct method