Shell script problem

Hello,

I would like to create a Shell script that shows the disk space used by each users.

I would like to show it like this:

UserName1 : disk space used
UserName2 : disk space used
Username3 : disk space used

I tried with du and cut but I would like to try something else. Thank you.

>>5
If you are studying in computer science, you either already are or you become a male. NO EXCEPTIONS

du on passwd
what