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Forum: Shell Programming and Scripting 02-08-2011

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Try this,

awk -F"," '{if(! a[$4] ) {a[$4]=$2;b[++i]=$0} else if( $2 < a[$4]){a[$4]=$2;b[i]=$0}} END {for(j=1;j<=i;j++) {print b[j]}}' inputfile

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