Jim,
The "-" means it's forbidden, aka. 0.
As for r,w,x, he's close. It's the other way around. Think of it as a Octal bit pattern - if that helps. :o>
The "-" means it's forbidden, aka. 0.
As for r,w,x, he's close. It's the other way around. Think of it as a Octal bit pattern - if that helps. :o>