On Sep 15, 2007, at 2:47 AM, Terry Poulin wrote:
>
> I think Mac OS X should have the traditional unix variables set,  
> like ${HOME}
> and ${EDITOR} but I don't own a mac to find out :'(.
>
It does. You don't even have to own one to find out. You can find it  
out in Unix in a Nutshell.
Those variables are set in any one of the several possible files that  
configure the shell. OS X uses Bash as the default shell.
(older versions used Tcsh as the default shell, but it's similar  
enough.)
It's as Unix as any *nix