Change the MAC address for a given interface on your Mac computer.

changeMAC.sh

#!/bin/bash

if [ "$#" -ne 1 ]; then
    echo "[-] Usage: ./changeMAC.sh <interface>"
    echo "[-] Hold down the option key and click the WiFi symbol to see your default interface name"
    exit 1
fi

interface=$1

echo "==BEFORE=="
ifconfig | grep -A 1 $interface | grep "ether"
randomMAC=$(openssl rand -hex 6 | sed 's/\(..\)/\1:/g; s/.$//')
sudo ifconfig $interface ether $randomMAC
echo "==AFTER=="
ifconfig | grep -A 1 $interface | grep "ether"