Chapter i. Introduction

This book is the most comprehensive beginner’s guide to Unix on the market. If you have never used Unix before, jump right in—this book was written first and foremost for you. If you are an experienced Unix user wondering about Mac OS X, take it from us, Mac OS X really is Unix—not almost, not sort of, but actual, real Unix with the Lovely Mac Interface.

This book deals almost exclusively with the command-line interface to Darwin—which is the version of Unix that Mac OS X is built upon. Unix is an operating system, and obviously you have used other operating systems in the past—at the very least, you have used the Macintosh operating system, and perhaps Windows, or even DOS. Unix is different. The other operating systems ...

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