mattbailey · November 8, 2012 19:25
diff --git a/netscan.sh b/netscan.sh
 ips=$(nmap -sP 192.168.1.0/24 2>/dev/null | grep 'scan report' | awk '{print $NF}' |sed 's/(//;s/)//')

 for ip in $ips
 do
  mac=$(arp $ip | cut -f 4 -d' ')
  ptr=$(dig -x $ip| grep PTR |tail -n 1|awk '{ print $NF}')
  if [ $ptr == 'PTR' ]
  then
    ptr="none"
  fi
  echo "$ip,$mac,$ptr;"
 done
	ips=$(nmap -sP 192.168.1.0/24 2>/dev/null \| grep 'scan report' \| awk '{print $NF}' \|sed 's/(//;s/)//')

	for ip in $ips
	do
	mac=$(arp $ip \| cut -f 4 -d' ')
	ptr=$(dig -x $ip\| grep PTR \|tail -n 1\|awk '{ print $NF}')
	if [ $ptr == 'PTR' ]
	then
	ptr="none"
	fi
	echo "$ip,$mac,$ptr;"
	done