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Bill Calkins is owner and president of Pyramid Consulting, a computer training and consulting firm specializing in the implementation and administration of Open Systems. He also is the owner of www.UnixEd.com, a web site that provides online UNIX training materials. Bill has more than 20 years of experience in UNIX system administration, consulting, and training at more than 100 different companies. He has authored several UNIX textbooks, which are currently best sellers and used by universities and training organizations worldwide, including the Solaris System 9 Systems Administrator Training Guide from Exam Cram.