Termux Netscan with NMAP and HTML output

#!/bin/bash
#created by Kris Occhipinti
#http://filmsbykris.com
#Copyright Jan 2019
#GPLv3 https://www.gnu.org/licenses/gpl-3.0.txt
#For use in Termux on Android
#quickly scans network based you current device's ip

log=$HOME/downloads/scan_$(date +%s).log
ip="$(ip addr|grep wlan -A3|grep inet|head -n1 |awk '{print $2}'|cut -d\/ -f1)"

ipr="$(echo "$ip"|cut -d\. -f1,2,3)"

echo "-------$ip--------"
#scan for http and printer servers
nmap -v $ipr.0/24 -p 80 |tee -a "$log"
nmap -v $ipr.0/24 -p 9100 |tee -a "$log"

#create HTML output
echo "<h1>HTTP Servers</h1>" > $log.html
grep 'Discovered open port 80' "$log"|\
  awk '{print $6}'|while read ipaddress
  do
    echo "<a href='http://$ipaddress'>$ipaddress</a><br>"
  done >> $log.html

echo "<br>" >> $log.html
echo "<h1>Printer Servers</h1>" >> $log.html
grep 'Discovered open port 9100' "$log"|\
  awk '{print $6}'|while read ipaddress
  do
    echo "<a href='http://$ipaddress'>$ipaddress</a><br>"
  done >> $log.html

termux-open $log.html

nmap -v $ipr.0/24  |tee -a "$log"

grep "Discovered open port" $log