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  #5 (permalink)  
Old 10-08-2008
matrixmadhan matrixmadhan is offline Forum Advisor  
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Join Date: Mar 2005
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Posts: 2,958
you can try something like,

[ not tested ]


Code:
awk 'BEGIN{ while ( getline < "file_1" ) { arr[$0]++ } }{ if ( $0 in arr ) { printf "%s is duplicate\n", $0 } }' file_2