SOMETING ABOUT UNIX

Linux is the hottest thing to arrive in UNIX-land in years: a wildly popular, completely free version of UNIX. It is (quite deliberately) similar to other versions of UNIX; for the most part, then, everything in this book that applies to other versions of UNIX also applies to Linux.

Many ISPs use Linux on their servers because it’s fast, flexible, and free. Even if you don’t use Linux locally, if you have a Web site hosted at your ISP, you may well find that a Linux box is serving up your Web pages.