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Learning Perl, 3rd Edition

by Randal L. Schwartz and Tom Phoenix, ISBN 0-596-00132-0, Third Edition, published July 2001

If you're looking for the best way to spend your first 30 to 45 hours with the Perl programming language, look no further. In the pages that follow, you'll find a carefully paced introduction to the language that remains the workhorse of the Internet, as well as the language of choice for system administrators, web hackers, and casual programmers around the world.

We can't give you all of Perl in just a few hours. The books that promise that are probably fibbing a bit. Instead, we've carefully selected a complete and useful subset of Perl for you to learn, good for programs from one to 128 lines long, which end up being about 90% of the programs in use out there. And when you're ready to go on, we've included a number of pointers for further education.

Each chapter is small enough to be read in an hour or two. Each chapter ends with a series of exercises to help you practice what you've just learned, with the answers in Appendix A, "Exercise Answers" for your reference. Thus, this book is ideally suited for a classroom "introduction to Perl" course. We know this directly, because the material for this book was lifted almost word-for-word from our flagship "Learning Perl" course, delivered to thousands of students around the world. However, we've designed the book for self-study as well.

Although Perl lives as the "toolbox for Unix," you don't have to be a Unix guru, or even a Unix user, to use this book. Unless otherwise noted, everything we're saying applies equally well to Windows ActivePerl from ActiveState, as well as to the later releases of MacPerl for the Macintosh and pretty much every other modern implementation of Perl.

Although you don't need to know a single bit about Perl to begin reading this book, we do recommend that you already have familiarity with basic programming concepts such as variables, loops, subroutines, and arrays, and the all-important "editing a source code file with your favorite text editor." We won't spend any time trying to explain those concepts. Although we're pleased that we've had many reports of people successfully picking up Learning Perl and grasping Perl as their first programming language, of course we can't promise the same results for everyone.

Table of Contents

Preface
Chapter 1: Introduction
Chapter 2: Scalar Data
Chapter 3: Lists and Arrays
Chapter 4: Subroutines
Chapter 5: Hashes
Chapter 6: I/O Basics
Chapter 7: Concepts of Regular Expressions
Chapter 8: More About Regular Expressions
Chapter 9: Using Regular Expressions
Chapter 10: More Control Structures
Chapter 11: Filehandles and File Tests
Chapter 12: Directory Operations
Chapter 13: Manipulating Files and Directories
Chapter 14: Process Management
Chapter 15: Strings and Sorting
Chapter 16: Simple Databases
Chapter 17: Some Advanced Perl Techniques
Appendix A: Exercise Answers
Appendix B: Beyond the Llama
Index
Colophon

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