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• Replace character by character (transliterate) using tr of Perl

• Read file line by line - video

• List and Array Utilities in Perl

• Eliminate circular reference memory-leak using weaken

• How much memory does my Perl application use?

• Memory usage and load time of Moose, Moo, and Class::Accessor

• Exchange values and keys of a hash - how to reverse a hash

• Manipulating Perl arrays: shift, unshift, push, pop

• Perl Arrays

• Consider everything not recognizable as a paragraph in Markua

• Implementing 'is_any' to test multiple expected values

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• Memoization - speeding up function calls by caching of return values

• Web sites powered by Perl with Open Source code-base

• Array assignment - video

• Creating an array - video

• How to change an element of an array in Perl

• How to remove, copy or rename a file with Perl

• Hash of Arrays in Perl

• "my" variable masks earlier declaration in same scope