developerWorks: Cultured Perl: One-Liners 102

“This article, as regular readers may have guessed, is the
sequel to “One-liners 101,” which appeared in a previous
installment of ‘Cultured Perl.’ The earlier article is an absolute
requirement for understanding the material here, so please take a
look at it before you continue.

“The goal of this article, as with its predecessor, is to show
legible and reusable code, not necessarily the shortest or most
efficient version of a program. With that in mind, let’s get to the
code!

“Tom Christiansen posted a list of one-liners on Usenet years
ago, and that list is still interesting and useful for any Perl
programmer. We will look at the more complex one-liners from the
list; the full list is available in the file tomc.txt. The list
overlaps slightly with the ‘One-liners 101’ article, and I will try
to point out those intersections…”

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