Chapter 3

Using Modules

Chapter Overview

Joe uses a module with credit card functions to analyze financial data for an auto parts store.

Chapter Objective

• use functions from a Perl module

Documentation

• perlmod
• perlmodlib
• perlpod

Topics

• A module is a reusable collection of functions.
• useing modules
• How use finds modules
• Importing and exporting identifiers
• Documentation
• Finding modules installed on a system

Lab

• Validating credit card information

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