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OS X Yosemite All-in-One For Dummies by Mark L. Chambers

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Chapter 2

… And Unix Lurks Beneath

In This Chapter

arrow Discovering the benefits of Unix

arrow Doing things with the keyboard

arrow Introducing Unix commands

arrow Creating text files

arrow Exploring deep inside OS X Yosemite

As I mention in the first chapter of the book — at the beginning of our Yosemite odyssey — Unix lurks deep beneath the shiny Aqua exterior of OS X. Unix is a tried-and-true operating system (OS) that’s been around for decades, since the days when minicomputers were king. If you don’t believe that it’s a powerful (and popular) OS, consider that more than half of all web servers on the Internet run using some variety of Unix.

Besides being battle-tested and having a long history, Unix offers some fantastic features. Unlike in the graphical world of OS X, however, the keyboard plays an integral role in using Unix. Because Unix is text-based, it’s evolved a large set of useful keyboard-driven commands that can perform powerful feats that a mouse user just can’t easily equal, such as moving ...

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