Linux Books?

[celliott]

I'm looking for a decent book to further improve my knowledge of Linux in server environments, specifically CentOS 5 or RHEL 5x (As they are both identical).

Obviously I'm not a beginner as I currently manage a number of servers with different configurations, including Xen Virtualization instances.

All I can seem to find are books for ubuntu, "an introduction to linux" or "linux for dummies"

I'm sure there are some *nix geeks among us here, any reccomendations?

 

[tntcoder]

A Practical Guide to Linux Commands, Editors, and Shell Programming (Paperback)
by Mark G. Sobell

Was my first book, very good imo.

 

[Cromulent]

The UNIX Programming Environment is extremely good, although I think it is about 20 odd years old now. Still worth picking up if you can find a cheap second hand copy.