A reference guide to Perl programming language, this text pr ovides quick, organized access to the vast array of features in PERL, version 5. Perl - a language for easily manipulating text, files, and processes - has established itself as the UNIX programming tool of choice since its creation in the mid 1980s. World Wide Web programmers have discovered PERL, and it is now becoming their programming tool of choice. The text provides a complete overview of the language, from variables to input and output, from flow control to regular expressions, from functions to document formats.