checkquota — Checks if the diskquota of an account is above 89%
A common issue for course accounts is accidentally going over disk quota. This can cause a host of problems, such as blocking student assignment submissions or stopping a test run before it is complete.
This is designed to be run on the ISG account from inside of an e-mailing harness. It will check an account's quota and, if the diskquota on any servers is 90% or higher, it will output a summary error message indicating the problem.