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Contents Listing

What Is the Perl Debugger?

Why Use the Debugger?

Unfamiliar Territory

About This Book
The linecounter.pl Script
Shell
Truncated Output
Versions of Perl
Delving Deeper
Conventions
Acknowledgments and Disclaimers

Before You Debug
Check Your Syntax
Use strict
Warnings
Diagnostics
Taint Mode

A Debugger Tutorial
Starting a Session
A Simple CGI Debugger Session

Debugger Commands
Help and Quitting
Examining Data
Listing Code and Searching
Motion
Actions, Breakpoints, and Watchpoints
Perl, Pre-Prompt, and Post-Prompt Commands
Shell and Debugger Commands
Setting Options

Debugger Variables
$DB::* Variables
Environment Variables

Debugging Options

DB and Devel Namespaces
Runtime Sequence
DB::DB()
DB::sub ()
Devel Namespace (-d)
Useful Modules
-DDEBUGGING

References
perldoc
Books
URLs
Online Articles
History
GUIs-Graphical User Interfaces
Debuggers
Text Editors

Quick Reference

Index