As a Linux newbie, I'm just trying to get my head around some of the core concepts of the OS.
The way Linux handles file permissions is much better than 'that legacy operating system' but I'm just trying to understand the way in which the root (superuser) has access in terms of file permissions.
I understand that root is the top dog and all other users are below root.
What I really want to know is if:
(a) root is automatically a member of all groups on the system
(b) root doesn't need to be a member of any group (of than root) because the kernel will give root access to everything irrespective of file permissions.
I think the answer is (b) but not sure!
Hope someone can help!?