I'd read file one, store the names in a hash, then read the second file, for each line, split the line into four parts (a prefix, and three parts for each name). If any of the names in the three latter parts match, print the prefix, and each of the matching name parts.

If you have specific problems how to do any of the subtasks, feel free to write what you have tried, and why it isn't working for you!

In reply to Re: File Intersection problem by JavaFan
in thread File Intersection problem by ashnator

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