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Comparing 2 list and deleting deuplicate entries

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#4 (permalink)

08-14-2007

matrixmadhan

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Join Date: Mar 2005

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Posts: 2,736

here is with awk considering backwards option

Code:

awk 'BEGIN{ while ( getline < "2" ) { arr[$0] = i++; } } { if (!( $0 in arr )) { print } }' 1