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UNIX(R) Shells by Example (4th Edition) Review by calvinnme
Great for review or reference
This book is broad-based in its approach to Unix shells and shell programming, and because it covers so much ground I'm not sure I'd recommend it to new users. However, if you are experienced and don't want to thumb through a dozen different books on Unix, this is the one to own. It has clear and simple examples that will refresh your memory quickly, as well as good illustrations of what is going on as your programs execute. I started out with the 1999 edition of this book, and I've updated as new editions have come along.
If you are a newcomer to Unix, I suggest Unix Programming Environment (Prentice-Hall Software Series). It's an oldie but a goodie and takes you from the ground up. That's really something this book doesn't do so well. Once you finish that book, move on to this one. There is some overlap, but I think the added attention will serve you well if you want to be proficient in shell programming and really know what is going on and how to handle various sets of tasks.