UNIX help for class. please help.?

Your CS account has a very small disk quota. If you logout while you are over your quota, you

cannot login again until you talk to the sysadmin. In order to avoid that, you decide to write a small

script that deletes all files ending in .o, and all files named core from your home directory. The

script should then check to make sure you are under quota, and give you a warning if you are not.

this is the problem i am given, and i understand the majority of it. my professor says it can be done ins just a few lines. Im stuck on how to reference quota and check if i am under it. please help.