Perl Language Reference Manual - For Perl Version 5.12.1

This manual is a printed edition of the official Perl reference documentation from the Perl 5.12.1 distribution. It describes the syntax of Perl and its built-in datatypes, operators, functions, variables, regular expressions and error messages. For each copy of this manual sold, the publisher (Network Theory Ltd) will donate 1 USD to The Perl Foundation to support the further development of the language. Further topics are covered in the "Perl Library Reference Manual (Volumes 1-6)", the "Perl C API and Internals Manual", and the "Perl Unicode and Locales Manual" (available separately).