Regular Expression Pocket Reference, 2nd Edition
This handy little book offers programmers a complete overview of the syntax and semantics of regular expressions that are at the heart of every text-processing application. Ideal as a quick reference, Regular Expression Pocket Reference covers the regular expression APIs for Perl 5.8, Ruby (including some upcoming 1.9 features), Java, PHP, .NET and C#, Python, vi, JavaScript, and the PCRE regular expression libraries. more »
Beginning Perl for Bioinformatics
This book shows biologists with little or no programming experience how to use Perl, the ideal language for biological data analysis. Each chapter focuses on solving a particular problem or class of problems, so you'll finish the book with a solid understanding of Perl basics, a collection of programs for such tasks as parsing BLAST and GenBank, and the skills to tackle more advanced bioinformatics programming. more »
Perl & LWP
Perl soared to popularity as a language for creating and managing web content, but with LWP (Library for WWW in Perl), Perl is equally adept at consuming information on the Web. LWP is a suite of modules for fetching and processing web pages.

The Web is a vast data source that contains everything from stock prices to movie credits, and with LWP all that data is just a few lines of code away. Anything you do on the Web, whether it's buying or selling, reading or writing, uploading or downloading, news to e-commerce, can be controlled with Perl and LWP. You can automate Web-based purchase orders as easily as you can set up a program to download MP3 files from a web site. more »
Learning Perl, 6th Edition
If you're just getting started with Perl, this is the book you want-whether you're a programmer, system administrator, or web hacker. Nicknamed "the Llama" by two generations of users, this bestseller closely follows the popular introductory Perl course taught by the authors since 1991. This 6th edition covers recent changes to the language up to version 5.14.

Perl is suitable for almost any task on almost any platform, from short fixes to complete web applications. Learning Perl teaches you the basics and shows you how to write programs up to 128 lines long-roughly the size of 90% of the Perl programs in use today. Each chapter includes exercises to help you practice what you've just learned. Other books may teach you to program in Perl, but this book will turn you into a Perl programmer. more »
Mastering Algorithms with Perl
Many programmers would love to use Perl for projects that involve heavy lifting, but miss the many traditional algorithms that textbooks teach for other languages. Computer scientists have identified many techniques that a wide range of programs need, such as: Fuzzy pattern matching for text (identify misspellings!), Finding correlations in data, Game-playing algorithms, Predicting phenomena such as Web traffic, Polynomial and spline fitting.

Using algorithms explained in this book, you too can carry out traditional programming tasks in a high-powered, efficient, easy-to-maintain manner with Perl.

This book assumes a basic understanding of Perl syntax and functions, but not necessarily any background in computer science. The authors explain in a readable fashion the reasons for using various classic programming techniques, the kind of applications that use them, and - most important - how to code these algorithms in Perl. more »
Perl/Tk Pocket Reference
The Perl/Tk Pocket Reference is a companion volume to Learning Perl/Tk, an O'Reilly Animal Guide. Learning Perl/Tk is a tutorial for Perl/Tk, the extension to Perl for creating graphical user interfaces. With Tk, Perl programs can be window-based rather than command-line based, with buttons, entry fields, listboxes, menus, scrollbars, balloons, tables, dialogs, and more. And Perl/Tk programs run on UNIX and Windows-based computers.

This small book is a handy reference guide geared toward the advanced Perl/Tk programmer. Novice Perl/Tk programmers will find that its compact size gives them a global view of Perl/Tk's capabilities; they can then turn to Learning Perl/Tk for details. The Perl/Tk Pocket Reference describes every Perl/Tk graphical element, including general widget and variable information, callbacks, geometry management, bindings, events, and window management, as well as composite widget, font, and image creation and manipulation commands. more »
RT Essentials
In a typical organization, there's always plenty that to do such as: pay vendors, invoice customers, answer customer inquiries, and fix bugs in hardware or software. You need to know who wants what and keep track of what is left to do.

This is where a ticketing system comes in. A ticketing system allows you to check the status of various tasks: when they were requested, who requested them and why, when they were completed, and more. RT is a high-level, open source ticketing system efficiently enabling a group of people to manage tasks, issues, and requests submitted by a community of users.

RT Essentials, co-written by one of the RT's original core developers, Jesse Vincent, starts off with a quick background lesson about ticketing systems and then shows you how to install and configure RT. This comprehensive guide explains how to perform day-to-day tasks to turn your RT server into a highly useful tracking tool. One way it does this is by examining how a company could use RT to manage its internal processes. Advanced chapters focus on developing add-on tools and utilities using Perl and Mason. There's also chapter filled with suggested uses for RT inside your organization. more »
Linux System Administration Recipes
The job of Linux systems administrator is interrupt-driven and requires constant learning in byte-wise chunks. This book gives solutions to modern problems-even some you might not have heard of-such as scripting LDAP, making Mac clients play nice with Linux servers, and backup, security, and recovery scripts. Author Juliet Kemp takes a broad approach to scripting using Perl and bash, and all scripts work on Debian or Red Hat lineage distributions. Plus, she dispenses wisdom about time management, dealing with desperate colleagues, and how to avoid reinventing the wheel! more »
Games, Diversions & Perl Culture
The Perl Journal (TPJ) did something most print journals aspire to, but few succeed. Within a remarkable short time, TPJ acquired a cult-following and became the voice of the Perl community. Every serious Perl programmer subscribed to it, and every notable Perl guru jumped at the opportunity to write for it. Back issues were swapped like trading cards. No longer in print format, TPJ remains the quintessential spirit of Perl - a publication for and by Perl programmers who see fun and beauty in an admittedly quirky little language.

Games, Diversions, and Perl Culture is the third volume of The Best of the Perl Journal, compiled and re-edited by the original editor and publisher of The Perl Journal, Jon Orwant. In this series, we've taken the very best (and still relevant) articles published in TPJ over its 5 years of publication and immortalized them into three volumes. more »
Perl Pocket Reference, 5th Edition
If you have a Perl programming question, you'll find the answer quickly in this handy, easy-to-use quick reference. The Perl Pocket Reference condenses and organizes stacks of documentation down to the most essential facts, so you can find what you need in a heartbeat.

Updated for Perl 5.14, the 5th edition provides a summary of Perl syntax rules and a complete list of operators, built-in functions, and other features. more »