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Clinton Pierce is a software engineer, freelance programmer and programming instructor. He is active in the Perl and Unix communities, contributing to the Perl Power Tools project, and answering several hundred questions in Usenet news groups about Perl. He has written courseware for several classes, including Unix systems administration, Perl programming, and Unix shell programming. Over the past six years he has trained hundreds of consultants and Ford employees in Perl programming and Unix systems programming and administration.