Simple script to help in running masscan againsts all TCP and UDP ports of a given IP, grep results and display them in a format which can then be used by other tools, example nmap. tun0 interface is used, adjust as necessary

massports.sh

#!/bin/bash
# Simple script to help in running masscan againsts all TCP and UDP ports, 
# grep results and display them in a format which can then be used by other tools, example nmap
# massports.sh by cxzero

if [ $# -eq 0 ]; then
        echo "usage: massports.sh <IP>"
        exit 1
fi

echo "[+] Target: {$1}"
echo "[+] Executing masscan on {$1}, all ports TCP:1-65535, UDP:1-65535, tun0"
sudo masscan -p1-65535,U:1-65535 --rate=1000 -e tun0 "$1" -oG masscan.txt

echo "[+] Parsing ports from output masscan.txt file"
cat masscan.txt | awk -F" " '{ print $7 }' | grep -E [0-9]+/ | cut -d/ -f1 | sort -u > ports.txt

echo "[+] Ports ready for nmap"
cat ports.txt | xargs | sed 's/ /,/g'

echo "[+] Done"