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  #4 (permalink)  
Old 10-27-2006
jim mcnamara jim mcnamara is offline Forum Staff  
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Join Date: Feb 2004
Location: NM
Posts: 5,787

Code:
#!/bin/ksh

awk -v check_val="$1" '{
        if( $0==check_val) { key[$0]++ }
        if(key[$0} < 2 ) print $0
       }' inputfile > outputfile