script for setting airport settings

Hi all - I'm not a mac user (sadly my budget and fact that I'm a windows administrator precludes the notion), but hopefully I will be soon! anyway, I've been roped in to helping a friend with her wifi on her macbook pro, and somehow it has forgotten the WPA key 2-3 times now. The router's working fine, my laptop jumps on right away and it is clear in her settings that somehow the key has gotten screwed up. I'm pretty sure that it's something that she's doing, however I'd like it if I didn't have to go over and fix it for her all the time.

Which brings me here. I'd like to write up a shell script that will repair or remove (and add new) the current wifi settings that she can just double click on and go on with her browsing. Can someone point me in the right direction? Thanks!

-Luke

Since I'm not a scripter but instead a Mac user (but am hip to what the windows world has to offer) I'll offer this advice,...

Try this. It's a more Mac-like approach to this problem. It may not fix it for you but a script, in the end, is just something else to manage as well.

Good Luck.