Shutdown from the command line


I would like to shutdown the machine from the command promt, even from the command line interface (Ctrl+Alt+F1). I have tried

shutdown “now”

but this does not shutdown it, just brings it to a halt mode.

How to shutdown and make power off? Thank you.

The command is “poweroff”. If you want to restart then “shutdown -r now”

If you need to be root to shutdown, you can do (if I remember right)

su -C "shutdown -r now" #to reboot 
su -C "shutdown -h now" #to shut it down (-h means "halt")

Changing runlevels should do the trick too:

su -c 'init 0' 


and here is command to change runlevel to reboot:

su -c 'init 6'