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 
Perl Programming by Wikibooks.org
This book assumes that you know absolutely nothing about programming at all and that Perl is your first language. However, basic operations such as making text files are outside of the realm of this tutorial.
Author(s): Wikibooks.org
NA 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 contents include:Prerequisites, Grading policies, Acquiring Perl, Perl Resources, Shameless Plugs, The Very Basics,Scalars, Lists and Arrays, Hashes, Filehandles, Subroutines, Perl Syntax, Datatypes, Control Structures, I/O, Regular Expressions, References, Modules etc.
Author(s): Bryan Jurish, Universitat Potsdam
104 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
Introduction to Perl and BioPerl
This note explains the following topics: Perl program structure, Variable types, Scalars , Pragmas , Operators , Arrays , Hashes , Control structures, Loop modifers, Subroutines , Reading and Writing a file, Filehandles , Regular expressions, Regex anchors and operators, Running perl, POD tools, What is Bioperl, Gotchas , Objects in Perl, Interfaces and Inheritance in Bioperl, Bioperl components, Parse a sequence from file, output, Read in sequence and write out in different format, Sequence Databases.
Author(s): Heikki Lehväslaiho
104 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
