The MAC Address Changer

mac-addr-changer.sh

#!/bin/bash
echo "The Mac Changer"
echo
echo "Copyright (c) Alex4386, Distributed under HRPL"
read -p "Type Interface you want to change: " interface
read -p "Type Mac Address you want to change: " mac
echo 
echo Backing up your previous mac
ifconfig $interface | grep ether > mac_bak.txt
echo Backup is now available at mac_bak.txt
echo
sudo ifconfig $interface ether $mac
sudo ifconfig $interface down
sudo ifconfig $interface up
echo Done!