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> is this possible?

yes, but we won't post whole code!

Apply

my ($number,$article) = split /\s+/, $line, 2

for each input line and decide which part should be unique.

learn to do it yourself with split.

Cheers Rolf

( addicted to the Perl Programming Language)

UPDATE

added missing third parameter for split


In reply to Re^3: ignore duplicates and show unique values between 2 text files by LanX
in thread ignore duplicates and show unique values between 2 text files by perlnoobster

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