comment on

The issue is more about appropriate tools for the job than hammering various shaped pegs into whatever hole you have.

use grep to get an output list that is a subset of an input list
use map to transform an input list into an output list
use for to iterate over a list (and almost never use the C version of for)
use a hash to look up keyed data quickly
use an array to lookup indexed data quickly
because hash keys are unique a hash is a good tool for finding unique strings in a bag of strings

Perl is environmentally friendly - it saves trees

In reply to Re^2: Finding values position in array by GrandFather
in thread Finding values position in array by cosmicperl

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