How to Shutdown or Restart from Terminal in Red Hat Linux 6.0

Linux is all about terminal.Linux user are more comfortable using terminal rather than GUI. So I am. I am so lazy that I hardly use any GUI command,  so every other day I try to find out alternative of gui interaction. This commands I came with as a newbie in linux, when I feel tired of shutting down or restarting my machine.

Suppose you are logged in as a normal user say:

user1@localhost ~]$

Now you need to switch to root user using switch user command
The command is

su -

Shell prompt you to enter rot user password like this

user1@localhost ~]$ su -
password:

Type your password and press enter.

Now you are switched to root user.

root@localhost ~]$ 

Type this command to shutdown

 root@localhost ~]$  init 0

Now to restart machine command is 

 root@localhost ~]$  init 6

There is  another way where you can do the same task without switching to root.. Just need to enter the command as su.

For shutdown 

 root@localhost ~]$ su -c "init 0"
 password:
 Type your password and press enter.



For restart.

 root@localhost ~]$ su -c "init 6"
password:
 Type your password and press enter.
  
Thats all done.