Pass parameters to rev app?

[Bill Vlahos]

I would like to write a Rev app which will download a file via the web 
after getting the URL from another program. The get URL command works if 
I hard code it in the Rev app. I want to write a generic program and 
reuse it like a cgi except it will get the URL from a shell script (not 
AppleScript or web). I don't need a GUI or actually save the file; just 
time how long it takes to download and return something to standard out.

This only needs to work from Mac OS X and it needs to be able to handle 
simultaneous requests. I believe in unix repeated calls from the shell 
simply makes multiple instances of the program and that is what I want 
to do.

Bill Vlahos