02-19-2008
Hi.
Quote:
Originally Posted by
gneen
I've got file A with (say) 1M lines in it ... ascii text, space delimited ...
I've got file B with (say) 10M lines in it ... same structure.
I want to remove any lines from A that appear (identically) in B and print the remaining (say) 900K lines ...
If the original order is not important you could sort both files, and use
comm, where you can choose a list that contains lines unique to one file, unique to the other, common to both, or any combination of those ... cheers, drl
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