if($key{$data} eq $input){
If you had used strict (tip #1 from the Basic debugging checklist), you'd have gotten an error regarding the %key variable. Perhaps you meant... 
if($data{$key} eq $input){

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See also Writeup Formatting Tips. Use "code" tags.

In reply to Re: Extracting single element from array to be printed in a one liner hash by toolic
in thread Extracting single element from array to be printed in a one liner hash by wildguess123

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