Masscan ports to NMAP

ms2nmap.sh

# This goes in ~/.bashrc or similar
function ms2nmap() {
  cat $1 | grep open | cut -d " " -f 4 | cut -d "/" -f 1 | tr "\n" "," | head -c -1
}

# Redirect or tee masscan output to a file. Then use 'ms2nmap ./filename' to convert it into a port list that nmap will take with -p
# You can directly pass it to nmap like this: nmap 1.2.3.4 -p$(ms2nmap file.txt)