Ping Wu says to YSITD diff netstat -tnW | awk '{print $5}' | tee >(awk -F '[.: ]' '{printf("%03d.%03d.%03d.%03d:%05d\n",$1,$2,$3,$4,$5)};' | sort -n | uniq -c -w 16 | nl) > >(wc -l)