Hey guys, I have the following task: - Read two files into separate hashes - Find out duplicates by checking out the common keys (e.g., id) - Merge those two hashes while keeping only the duplicates and discarding the rest - Print out the new hash into an output file Note: Files are not of same size (both in rows and columns), and furthermore they contain multiple values Problems - Well, basically everything. But to begin with, I could not figure out how to read files into hashes while keeping all multiple values (It appears to catch one key and one value only) Should I read the all values as an array? I would appreciate your wisdom. Thanks! UPDATE: Thanks everyone! In one of the messages below, GrandFather provides a working code that carries out the task I described in my question.

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