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Perl Turns 25
Last month, not long before all the holiday excitement set in, the programming language Perl quietly turned 25. The language has grown and changed a great deal since Larry Wall unveiled version 1. But so has the programming world in general. Is there still a place for this versatile yet infuriating open source creation?

Lists and Arguments in Perl
In this conclusion to a six-part article series on subroutines and functions in Perl, you'll learn more about lists and arrays, and take a look at default argument values. This article was excerpted from chapter six of the book Beginning Perl, Second Edition, written by James Lee (Apress; ISBN: 159059391X).

Variables and Arguments in Perl
In this fifth part to a six-part article series on subroutines and functions in Perl, you'll learn about lexical variables, and how passing arguments works. This article was excerpted from chapter six of the book Beginning Perl, Second Edition, written by James Lee (Apress; ISBN: 159059391X).

Understanding Scope and Packages in Perl
In this fourth part of a six-part article series on subroutines and functions in Perl, you will learn about two different types of variables (global and lexical) and their scopes. You will also learn what a package is. This article was excerpted from chapter six of the book Beginning Perl, Second Edition, written by James Lee (Apress; ISBN: 159059391X).

Arguments and Return Values in Perl
In this third part of a six-part article series on subroutines and functions in Perl, you'll learn about passing arguments into functions, and implicitly and explicitly getting return values. This article was excerpted from chapter six of the book Beginning Perl, Second Edition, written by James Lee (Apress; ISBN: 159059391X).

Invoking Perl Subroutines and Functions
In this second part of a six-part article series on subroutines and functions in Perl, you will learn how to invoke a subroutine and a function. This article was excerpted from chapter six of the book Beginning Perl, Second Edition, written by James Lee (Apress; ISBN: 159059391X).

Subroutines and Functions in Perl
Subroutines and functions save time by letting you reuse code. This six-part series will show you how to create and use them in Perl. This article was excerpted from chapter six of the book Beginning Perl, Second Edition, written by James Lee (Apress; ISBN: 159059391X).

Perl Basics: Writing and Debugging Programs
In this third part of a three-part article series on the basics of Perl programming, you'll learn how to use escape sequences in your programming, and how to use the Perl debugger. This article is excerpted from chapter one of the book Beginning Perl, Second Edition by James Lee (Apress; ISBN: 159059391X).

Structure and Statements in Perl
In this second part of a three-part series on Perl programming, you'll learn how to structure your programs, and how to use statements. This article is excerpted from chapter one of the book Beginning Perl, Second Edition by James Lee (Apress; ISBN: 159059391X).

First Steps in Perl
In this first part of a three-part series, you'll learn the fundamentals of programming in Perl. This article is excerpted from chapter one of the book Beginning Perl, Second Edition by James Lee (Apress; ISBN: 159059391X).

Completing Regular Expression Basics
In this conclusion to a four-part series on parsing and regular expression basics in Perl, we finish our study of regular expressions; you'll even learn how to create your own. This article is excerpted from chapter one of the book Pro Perl Parsing, written by Christopher M. Frenz (Apress; ISBN: 1590595041).

Modifiers, Boundaries, and Regular Expressions
In this third part to a four-part series on parsing and regular expressions in Perl, you will learn about cloistered pattern modifiers, boundary assertions, troubleshooting regular expressions, and more. This article is excerpted from chapter one of the book Pro Perl Parsing, written by Christopher M. Frenz (Apress; ISBN: 1590595041).

Quantifiers and Other Regular Expression Basics
In this second part of a four-part series on parsing and regular expression basics in Perl, you'll learn about quantifiers, modifiers, and more. This article is excerpted from chapter one of the book Pro Perl Parsing, written by Christopher M. Frenz (Apress; ISBN: 1590595041).

Parsing and Regular Expression Basics
Parsing helps us to extract the information we need from the mounds of data available. Regular expressions assist us in the hunt. This four-part article series will show you how to use Perl with regular expressions to accomplish your parsing tasks. It is excerpted from chapter one of the book Pro Perl Parsing, written by Christopher M. Frenz (Apress; ISBN: 1590595041).

Hash Functions
In this second part of a two-part series on hashes in Perl, you'll learn about hash functions and hashes in different contexts. This article is excerpted from chapter five of the book Beginning Perl, written by James Lee (Apress; ISBN: 159059391X).

Hashes
Hashes in Perl aren't really that hard to understand; they're not that much harder than understanding how a phone book works. This article introduces you to hashes, what they do, and how to use them. It is excerpted from chapter five of the book Beginning Perl, written by James Lee (Apress; ISBN: 159059391X).

Scalars: Building a Currency Converter
In this conclusion to a five-part series on scalars in Perl, we'll put everything we've learned together to build a currency converter. This article is excerpted from chapter two of the book Beginning Perl, written by James Lee (Apress; ISBN: 159059391X).

Scalars and Variables
In this fourth part of a five-part series on scalars in Perl, you learn how to compare the value of strings; we'll also wrap up our discusssion of operators and move on to variables. This article is excerpted from chapter two of the book Beginning Perl, written by James Lee (Apress; ISBN: 159059391X).

Scalars and Boolean and String Operators
In this third part of a five-part series on scalars in Perl, we continue our study of operators, moving on to Boolean and string operators. This article is excerpted from chapter two of the book Beginning Perl, written by James Lee (Apress; ISBN: 159059391X).

Scalars and Operators
In this second part of a five-part series on scalars in Perl, you'll learn about operators (both arithmetic and bitwise), among other things. This article is excerpted from chapter two of the book Beginning Perl, written by James Lee (Apress; ISBN: 159059391X).