This chapter is a guide to the Unix commands and utilities you’ll encounter throughout this book. This is preliminary material, and you may already know a substantial amount of it. Even if you think you’re up to speed, take a few moments to flip through the chapter just to make sure, especially when it comes to the directory hierarchy material in Section 2.19.
Why Unix commands? Isn’t this a book about how Linux works? It is, of course, but Linux is a Unix flavor at heart. You’ll see the word Unix in this chapter more than Linux because you can take what you learn straight over to BSD and other Unix-flavored ...
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