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Perl 101 (part 3): Looping The Loop
Learn about Perl's control structures and array variables.

| Shampoo And Perl |

Last time, we introduced you to Perl's basic control structure - the "if-else" family of conditional statements - and also taught you a little more about scalar variables. This week, we're going to proceed a little further down that same road, with a look at the different types of loops you can use in Perl, an introduction to a new type of variable, and a tongue-in-cheek look at the things modern managers do in the interests of a fatter bottom line.

As always, we'll begin with a definition for those of you coming at this series from a non-programming background. In geek-talk, a "loop" is precisely what you would think - a programming construct that allows you to execute a set of statements over and over again, until a pre-defined condition is met.

Every programming language worth its salt uses loops - and, incidentally, so do quite a few shampoo manufacturers. Think lather-rinse-repeat, and you'll see what we mean...

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