checks for unix
checks is an aptly named little UNIX utility that will check a user-defined folder to see if any new documents have been added or removed. A friend of needed something like this as he has multiple mail folders, and biff only checks the mail spool for changes.
When you open checks with no arguments, it gives you the list of arguments to use to open it and make it do something. It's pretty self-explainitory, though a man page and README are included for your enjoyment.
Checks 0.3.3 sourceThis program has been begging for an update for a few years now. It does its job well, however, if you wish to edit the code you'll probably notice quite quickly how new I was to programming C for unix. Style guidelines can eat it!