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Title: Do Not Buy if your a beginner!
Review: I purchased this book based upon the reviews provided. In my current job I use Unix in a very basic way. I wanted to purchase a book to give me a better understanding of the commands I was using. This book fails in every way.The building block concept the book claims to implement is a joke. The author directs you to enter in commands but does not explain why he is doing so. Concepts from future hours are utilized early (don't worry the author says we will go over it later). Key concepts are dismissed in one sentence (see echo). So many commands are thrown at you that it becomes difficult to keep track of them. Exercises at the end of the book do not come with answers at the end.If your a user with a good working knowledge of Unix then you might find this book useful. Otherwise do NOT buy. You'd be better using google to get your Unix expertise.
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