Your first step should be to start your script with 
use strict;
use warnings;

[download]

And declare your variables with my.

It would catch some of your mistakes. For example you're populating the array @cytokine, and later you try to read out of $cytokine{$ING[2]}, which access the (totally different) variable %cytokine.

In reply to Re: Count Matches in a File by moritz
in thread Count Matches in a File by de2425

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