So you've learned Perl, but you're getting frustrated. Perhaps you've taken on a larger project than the ones you're used to. Or you want to add a user interface or a networking component. Or you need to do more complicated error trapping. Whether your knowledge of Perl is casual or deep, this book will make you a more accomplished programmer. Here you can learn the complex techniques for production-ready Perl programs. This book explains methods for manipulating data and objects that may have looked like magic before. Furthermore, it sets Perl in the context of a larger environment, giving you the background you need for dealing with networks, databases, and GUIs. The discussion of internals helps you program more efficiently and embed Perl within C or C within Perl.

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 The Perl language is well suited for use with "data munging" tasks: those that involve transforming and massaging data. While Perl is commonly used for such tasks, there has been no book focused on the topic of munging. This book covers the basic paradigms of programming and discusses the many techniques that are specific to Perl. It also examines standard data formats such as text, binary, HTML, and XML before giving tips on creating and parsing new structured data formats. Source code downloads and technical support from the authors are available on publisher's Web site.

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Most Perl programmers were originally trained as C and Unix programmers, so the Perl programs that they write bear a strong resemblance to C programs. However, Perl incorporates many features that have their roots in other languages such as Lisp. These advanced features are not well understood and are rarely used by most Perl programmers, but they are very powerful. They can automate tasks in everyday programming that are difficult to solve in any other way. One of the most powerful of these techniques is writing functions that manufacture or modify other functions. For example, instead of writing ten similar functions, a programmer can write a general pattern or framework that can then create the functions as needed according to the pattern. For several years Mark Jason Dominus has worked to apply functional programming techniques to Perl. Now Mark brings these flexible programming methods that he has successfully taught in numerous tutorials and training sessions to a wider audience.

* Introduces powerful programming methods—new to most Perl programmers—that were previously the domain of computer scientists
* Gradually builds up confidence by describing techniques of progressive sophistication
* Shows how to improve everyday programs and includes numerous engaging code examples to illustrate the methods

Perl & XML is aimed at Perl programmers who need to work with XML documents and data. This book gives a complete, comprehensive tour of the landscape of Perl and XML, making sense of the myriad of modules, terminology, and techniques. The last two chapters of Perl and XML give complete examples of XML applications, pulling together all the tools at your disposal.

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Working on the assumption that the reader has no formal training in programming, Perl Programming for Biologists demonstrates how Perl is used to solve biological problems. Each chapter opens with a set of learning objectives, provides numerous review questions and self-study exercises, and concludes with a bulleted summary of key points. The author incorporates numerous real-life examples throughout the text. Upon completing the book, readers are able to quickly perform such tasks as correcting recurring errors in spreadsheets, scanning a Fasta sequence for every occurrence of an EcoRI site, adapting other writers’ scripts to one’s own purposes, and most important, writing reusable and maintainable scripts that spare the rote repetition of code. (more…)

LinuxCBT Scripting Edition is a unique approach to teaching GNU/Linux Scripting skills. Serious Linux IT-professionals are expected to have a command of various scripting environments for administrative purposes. It consists of 4 LinuxCBT Scripting Products: BASH, Perl, Python & PHP. LinuxCBT Scripting Edition, is unparalleled in content, depth and expertise. LinuxCBT Scripting Edition prepares you or your organization for successfully developing and implementing business-critical GNU/Linux-based scripting solutions. Linux automation requires a solid scripting foundation.Recommended Prerequisites:

* LinuxCBT Classic and/or Debian GNU/Linux Editions - Operating System (OS) Base
* Open mind & determination to master Linux Scripting Solutions - BASH/Perl/Python/PHP
* Access to a GNU/Linux-based PC to perform exercises in LinuxCBT Scripting Edition (more…)

A reference and introduction to graphics programming with Perl and Perl modules that includes simple graphics recipes and techniques for designing flexible graphics software.

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When the second edition of Programming Perl was released, the authors omitted two chapters: “Common Tasks with Perl” and “Real Perl Programs.” Publisher O’Reilly & Associates soon realized that there would be too many pages in Programming Perl if it put updated recipes in the new edition. Instead, O’Reilly chose to release the many Perl code examples as a separate entity: The Perl Cookbook. The recipes are well documented and the examples aren’t too arcane; even beginners will be able to pick up the lessons taught here. The authors write in relatively easy-to-understand language (for a technical guide). Through this book and its arsenal of recipes, you will learn many new things about Perl to help you through your toughest projects. The next time you’re working on a project at 2 a.m., you’ll thank yourself for the guidance and direction The Perl Cookbook provides

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Working on the assumption that the reader has no formal training in programming, Perl Programming for Biologists demonstrates how Perl is used to solve biological problems. Each chapter opens with a set of learning objectives, provides numerous review questions and self-study exercises, and concludes with a bulleted summary of key points. The author incorporates numerous real-life examples throughout the text. Upon completing the book, readers are able to quickly perform such tasks as correcting recurring errors in spreadsheets, scanning a Fasta sequence for every occurrence of an EcoRI site, adapting other writers’ scripts to one’s own purposes, and most important, writing reusable and maintainable scripts that spare the rote repetition of code.

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Beginning Perl Web Development: From Novice to Professional introduces you to the world of Perl Internet application development. This book tackles all areas crucial to developing your first web applications and includes a powerful combination of real-world examples coupled with advice. Topics range from serving and consuming RSS feeds, to monitoring Internet servers, to interfacing with e-mail. You’ll learn how to use Perl with ancillary packages like Mason and Nagios.

Though not version specific, this book is an ideal read if you have had some grounding in Perl basics and now want to move into the world of web application development. Author Steve Suehring emphasizes the security implications of Perl, drawing on years of experience teaching readers how to “think safe,” avoid common pitfalls, and produce well-planned, secure code.

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