Use Linux instead of Unix in What is Linux section.

[phr0ze]

Version 788
Prologue, Page 8

"Many servers around the world that store data for popular websites (su as
YouTube and Google) run some variant of a Unix system."

Really should use Linux here. Even if the examples have to be adjusted.
Also why did the 'such' change on copy and paste. I tried it twice.

[Ross (rossmasters)]

I'm not too sure of the differences but from what I understand Linux is the actual kernel and UNIX is a standard for UNIX operating systems? If that's the case then this should be changed.

[Jason Cook (jasoncook599)]

UNIX uses the Linux Kernel. See http://en.wikipedia.org/wiki/Linux_(kernel). I think that it is fine as is.