UNIX Shell Programming, Revised Edition, shows UNIX users how to quickly and easily automate routine tasks by taking command of the UNIX shell. The shell makes light work of big tasks by transferring your simple instructions into powerful commands that put UNIX through its paces. You don't have to be a programmer, or a UNIX expert, to use shell programming to take control of your environment--if you are acquainted with UNIX, this book can take you the rest of the way. If you are a programmer, you'll be surprised at the range of tasks you can automate with the shell--and at the speed and convenience the shell has over many high-level programming languages. If you're from the growing ranks of UNIX system administrators, this book shows how the shell can make your life easier while improving your service.