Chapter 7. Subroutines and Modules
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You now know enough Perl to be able to write a moderately complex program. At this point, you need to start organizing your code into subroutines.
Perl lets you put a collection of subroutines together into packages. A package designed to hold reusable code is called a module.
In this chapter, you’ll learn how to produce modules as well as how to create your own module library.
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