Programming PERL in the .NET Environment

Perl Libraries

All of the subroutines above have been written in the file where they are invoked. To make these and other programmer-written subroutines reusable, you must place them in a file and instruct Perl to include them in any program that needs them. The file where you place these subroutines are essentially Perl library files. There are a few ways of accomplishing this task.

The require Function

One way of importing a file into your program is to use the Perl require function. To illustrate how this function works, let's take a few of the functions we have seen thus far and place them in a file by themselves. Although the name of this file is not significant, we will call it library.pl. Keep in mind that this file will not be executed ...