simple shall programming question
 

I want to do a fle that every time I write it

"./filename"
it goes and do

su -
password
cable-stop
killall gaim
Poweroff -p



I'm sure it's possible, can you help me out on this one?

#!/bin/sh
su
cable-stop
killall gaim
poweroff -p


works better if you actually would use sudo, so it doesn't prompt for password