Rating: 

The UNIXy world uses many anti/non-mnemonics. "Arbitrary-grunts"are NOT a way for users to communicate! The 1st ed failed! It left me suspicious of the authors and the editors. X

Eg: The description of "tar" n doesn't give 'TapeARchive' as the source.

Eg: No explaination nor example of ".z" suffix. www.Whatis.techtarget.com even briefly mentions Lempel-Ziv.

If GNU/Linux is to continue expanding users need a little context for the argot!

O'Reilly needs to add an argot agent to its editing.

A 4th edition is needed.