1. Introduction.       Questions and Answers       What Does "Perl" Stand For?       How Can I Get Perl?       How Do I Make a Perl Program?       A Whirlwind Tour of Perl       Exercises  2. Scalar Data.       Numbers       Strings       Perl's Built-in Warnings       Scalar Variables       Output with print       The if Control Structure       Getting User Input       The chomp Operator       The while Control Structure       The undef Value       The defined Function       Exercises  3. Lists and Arrays.       Accessing Elements of an Array       Special Array Indices       List Literals       List Assignment       Interpolating Arrays into Strings       The foreach Control Structure       Scalar and List Context       in List Context       Exercises  4. Subroutines.

      Defining a Subroutine       Invoking a Subroutine       Return Values       Arguments       Private Variables in Subroutines       Variable-Length Parameter Lists       Notes on Lexical (my) Variables       The use strict Pragma       The return Operator       Non-Scalar Return Values       Exercises  5. Input and Output.       Input from Standard Input       Input from the Diamond Operator       The Invocation Arguments       Output to Standard Output       Formatted Output with printf       Filehandles       Opening a Filehandle       Fatal Errors with die       Using Filehandles       Reopening a Standard Filehandle       Exercises  6. Hashes.       What Is a Hash?       Hash Element Access       Hash Functions       Typical Use of a Hash       Exercises  7. In the World of Regular Expressions.       What Are Regular Expressions?       Using Simple Patterns       Character Classes       Exercises  8. Matching with Regular Expressions.

      Matches with m//       Option Modifiers       Anchors       The Binding Operator, =~       Interpolating into Patterns       The Match Variables       General Quantifiers       Precedence       A Pattern Test Program       Exercises  9. Processing Text with Regular Expressions.       Substitutions with s///       The split Operator       The join Function       m// in List Context       More Powerful Regular Expressions       Exercises 10. More Control Structures.       The unless Control Structure       The until Control Structure       Expression Modifiers       The Naked Block Control Structure       The elsif Clause       Autoincrement and Autodecrement       The for Control Structure       Loop Controls       Logical Operators       Exercise 11. File Tests.       File Test Operators       The stat and lstat Functions       The localtime Function       Bitwise Operators       Using the Special Underscore Filehandle       Exercises.