Hmmm I think by this time a new thread would be appropriate... Although the script really is still an Alpha product but if we make that clear to people then it should be fine.

And I believe that that's the best way to do it (looking at command line arguments)... Although, don't be too quick to take my word for it, I know next to nothing about shell scripting and I've only been able to come this far through the help of hours of google searches