The Perl Pocket Reference is a quick reference guide to Larry Wall’s Perl programming language. It contains a concise description of all statements, functions, and variables, and lots of other useful information.
The purpose of the Pocket Reference is to aid users of Perl in finding the syntax of specific functions and statements and the meaning of built-in variables. It is not a self-contained user guide; basic knowledge of the Perl language is required. It is also not complete; some of the more obscure variants of Perl constructs have been left out. But all functions and variables are mentioned in at least one way they can be used.