List available IP's in Network

nmap -T4 -sP 192.168.0.0/24 && egrep "00:00:00:00:00:00" /proc/net/arp
nmap -T4 -sP 192.168.0.0/24 && egrep "00:00:00:00:00:00" /proc/net/arp > ip.list.txt
nmap -T4 -sP 192.168.0.0/24 && egrep "00:00:00:00:00:00" /proc/net/arp >> ip.list.txt
nmap -T4 -sP 192.168.0.0/24 >> ip.list.txt && egrep "00:00:00:00:00:00" /proc/net/arp >> ip.list.txt