Re^2: find unique values from a file by comparing two columns

in reply to Re: find unique values from a file by comparing two columns
in thread find unique values from a file by comparing two columns

Interesting :) [perldoc://unique] unique -> perlfaq4#How can I remove duplicate elements from a list or array?

Use a hash. When you think the words "unique" or "duplicated", think "hash keys".

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