scripting hassels

[TAG]

HI ALL,

I have a problem and very tedious problem.  I have to convert files from
one format to another for files in different directories:

ie: /usr/home/<user>/file needs to be converted with a program "convert"
into /home/<user>/file2 - but I have over 3000 users??

Is there a simple script that will read from a file that lists all the
users and place's their name into the right place and automates the whole
thing??

PLEASE HELP - I hate to have to do it all by hand??

MANY thanks

--Tonino