Just a quick sneaky trick – if you’re used to being able to run terminals as root, or you need to run a lot of commands as root, and are sick of having to type sudo every time, there is a sneaky way of increasing your privileges for the terminal sessions. 

Open a terminal, and run:

sudo su

and you have a terminal running as root!  running su by itself doesn’t work with Ubuntu … but if you sudo the command, it does.  Generally, this isn’t great practise – its too easy to make a mistake and damage the system, so use with caution!