Logging Strategies for Batch Processing Scripts

Does anyone know of an OS X replacement for monoLog or something similar? This was a cool app that let (or ‘lets’ if you’re still on OS 9) you send progress/error events and do all sorts of things like write them to a file, filter, email, access via the web, etc.

http://www.sophisticated.com/products/monolog/monolog.html

Perhaps there are some standard unix utilities that are more commonly used for web or sys logs that would do the trick?

Or am I going to have to code this myself. (Please say it ain’t so!)

Thanks all.