Help w/Disk usage utility

[Arthur Nghiem]

	I want to write a script that will check the disk usage of a group
of users periodically.  I want to be able to warn them when they first exceed
a limit, wait a few days and then automatically compress their files or
remove the newest files that put them over the limit.
        I'm hoping that someone has already done this and will be happy
to help out.  Please send mail to arthur at ccwf.ccutexas.edu.  Scripting in
any shell and/or alernate solutions will be joyfully accepted.

               Thanx,  Arthur