It can't really hurt you to learn basic system admin. and commands from the book you have. You will, however, find that tons of stuff has changed since 7.2....in fact a lot of the system structure...and certainly the X stuff will be pretty out of date...installation is vastly different too.
I would use that book to learn rudimentary Unix stuff you want to learn, but I would rely on more recent online documentation for the newer Redhat configurations.
You can also do a trial membership (free) at safari.oreilly.com ...they give you 14 days free. You can read newer Redhat books there if you want.
But honestly, Redhat is pretty well-documented online either here, on Redhat's site, or on google. You hardly need a book for Redhat these days.
|