awk ' { if($0 ~/(^(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])\.)((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])$/){ print "yes" }else if($0 ~/^(([0-9][0-9]?[0-9]?)...