Required: shell scripting wizard!

[David Bovill]

Actually maybe it is not so hard :) I want to  create a way to launch
LiveCode using shell, but also to pass to it a url in the first param of the
shell command. As I don't think you can do this directly anymore using shell
scritps written in LiveCode - I think I need to write a bash script and set
an environmental variable which I can then access using $ in Livecode?

This is what I need to do:

A shell command used to launch your preferred web browser when given a
URL as an argument.
>
> Defaults to "start" on windows, "open" on Mac, and "firefox" on Unix.
>
> Any thoughts?