FOREWORD
UNIX has evolved from its rather inconspicuous beginnings in a research and development environment to immense popularity in the Internet community. It is always amazing to step back and realize how much something has changed. Fortunately, in computing, this doesn’t take long. The Unix operating system progressed from R&D through uses within select major industries to the Internet. Today’s UNIX options for a computer system include a wide range of products, from utilizing a UNIX command set on non-UNIX systems, through various Linux distributions, to the different variants of UNIX, including HP-UX, Solaris, and AIX. UNIX can be found not only in traditional dedicated computer room settings, but also desktops, notebooks, and PDAs. Understanding ...
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