Perl Programming
This note covers the following topics: the basics, arrays, program arguments and conditionals,, reading and writing to files, more loops and some math in perl, subroutines,, hashes associative arrays, string manipulation, more regular expressions, file and directory manipulation, time and perl modules, system commands, network modules, programming techniques and review.
Author(s): Mark Tucker
NA Pages 
This PDF covers the following topics related to Perl : Getting Started with Perl, Arrays, Hashes and Loops, File Handling, Regular Expressions, Subroutines, References and Complex Data Structures, Perl Modules, Interacting with external programs.
Author(s): Babraham BioInformatics
76 Pages
This PDF covers the following topics related to Perl : Introduction and philosophy, Basics, Variables and data types, Important concepts, Control structures, I/O, Interacting with UNIX.
Author(s): Brent Yorgey
28 Pages
The aim of this note is to give you not just an understanding of the workings of the perl interpreter, but also the means to investigate more about it, to analyze and solve bugs in the Perl core, and to take part in the Perl development process.
Author(s): Simon Cozens
NA Pages
Beginning Perl Free Book by Simon Cozens
Perl is an immensely popular scripting language that combines the best features of C, key UNIX utilities and a powerful use of regular expressions. This book promotes the use of Perl as a programming language, encouraging the creation of legible and sensible programs so as to dispel the image of Perl as a confusing and obscure language.
Author(s): Simon Cozens
NA Pages
An excellent book that covers exactly what the title says. Modern Perl teaches you how Perl really works. It's the only book that explains Perl thoroughly, from its philosophical roots to the pragmatic decisions that help you solve real problems and keep them solved.
Author(s): Chromatic
NA Pages
This book invites Perl programmers and their customers to take a fresh look at software development. It explains Extreme Perl to both programmers and business people.
Author(s): Robert Nagler
194 Pages
