Re^2: find common lines in many files

Update: Corion points out that you aren't counting. I think your one-liner might work if you modify your regex to be:

perl -ne 'print if ($seen{$_} .= @ARGV) =~ /^9876543210$/' FILE1 FILE2
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Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

Comment on Re^2: find common lines in many files Download Code

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Re^3: find common lines in many files by jethro (Monsignor) on Jul 11, 2011 at 09:56 UTC
No, because if lines occur more than once in a file you get strings like "9987655433321"	[reply]
Re^4: find common lines in many files by BrowserUk (Patriarch) on Jul 11, 2011 at 10:13 UTC
Right! Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply]