Skip to Main Content
Learning Perl, 5th Edition
book

Learning Perl, 5th Edition

by Randal L. Schwartz, Tom Phoenix, brian d foy
June 2008
Beginner content levelBeginner
352 pages
11h 16m
English
O'Reilly Media, Inc.
Content preview from Learning Perl, 5th Edition

Debugging

There’s a very good debugger that comes with Perl and supports breakpoints, watchpoints, single-stepping, and generally everything you’d want in a command-line Perl debugger. It’s actually written in Perl (so, if there are bugs in the debugger, we’re not sure how they get those out). But that means that, in addition to all of the usual debugger commands, you can actually run Perl code from the debugger—calling your subroutines, changing variables, even redefining subroutines—while your program is running. See the perldebug manpage for the latest details. The Alpaca gives a detailed walkthrough of the debugger.

Another debugging tactic is to use the B::Lint module, which can warn you about potential problems that even the -w switch misses.

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Learning Perl, 6th Edition

Learning Perl, 6th Edition

Randal L. Schwartz, brian d foy, Tom Phoenix
Beginning Perl

Beginning Perl

Curtis Ovid Poe
Learning Perl 6

Learning Perl 6

brian d foy
Mastering Perl

Mastering Perl

brian d foy

Publisher Resources

ISBN: 9780596520106Supplemental ContentErrata Page