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  #7 (permalink)  
Old 11-21-2008
cdfd123 cdfd123 is offline
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Join Date: Jul 2007
Posts: 112
Cool awk command to comapre two files
if u have two files
first file and second file

awk command will be

awk 'BEGIN {while (getline <"first file") {arr[$0]++}}
{ if (!($0 in arr) {print }}' second file