This sounds like an XY Problem. What are you trying to accomplish? What did you try that didn't work? Can you perhaps give us a sample data structure? An example is worth 1000 words. See How do I post a question effectively?.

My reading of your post says you are looking for a one-to-many mapping in a hash. This is usually done with an array ref: perlreftut, perllol. Perhaps stored with: 

push @{$hash{$key}}, $value;

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#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

In reply to Re: How to find the repeated text in hash by kennethk
in thread How to find the repeated text in hash by codewalker

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