"Tom Van Looy"  writes:
> on unix everything is a file?
no, it's not. It's the dumbed down "truth" so that you can explain to

random people what the hell Unix is, or rather to make them have a

dumb look on their face and nod.
A process is not a file, a memory region is not a file, the sysctl tree

is not a file, there's plenty of stuff that is as far from files as

you can get. Many directory operations are explicitly not done on file

descriptors because it would be too complicated.
//art