Find my pi on the local network

#!/bin/bash
# findMYPi:
# Find all MY Pi's on the LAN

#grep broadcast ip
var1=$(ifconfig | grep inet | tail -1 | awk '{print $6}' | cut -f2 -d: | cut -f1-3 -d.)

#ping all ip's on the network
for i in {1..255}; do ping -c 1 -W 1 $var1.$i; done

#grep MY Pi's
arp -a | grep "b8:27:eb"