> What it sounds like you are trying to do is make it so that 
> when you create
> a file (via touch or other means), it creates it with group 
> mpe as the group
> owner.  Assuming you are a member of mpe, (with Wizard) as 
> your default, you
> need to change your default group ID to mpe (from Wizard).  The newgrp
> command will do this for you.

Yes, I thought so also.
But you can't put newgrp in a script.
Well, you can, but that ends the script because newgrp issues a
new shell.

For users that may have multiple group assignments, I wanted
to create a script that they can run which would place them
into the correct group, run the application(s), and hopefully
when they exit, return them to their starting point.

I didn't want to require all users of my app to have their primary
group be the required one.

Other than newgrp, it appears that you can't change your group.
Thats when I remembered the setgid bit.

___________________________________________________________________
Keven Miller   mailto:[log in to unmask]   http://www.exegesys.com