Change your Mac's MAC

change-mac

#!/usr/bin/env bash

MYMAC=$(/usr/sbin/networksetup -getmacaddress Wi-Fi | grep -oE "[a-zA-Z0-9]{2}:([a-zA-Z0-9]{2}:?)+")

if [ "$1" == "--help" ] || [ $# -gt 1 ]; then
    echo "usage: $(basename $0) [--random|--orig]"
    exit 1
fi

if [ $# -eq 0 ] || [ "$1" == "--random" ]; then
    # force first octet to be even (end in 0,2,4,6,8,a,c,e) to indicate unicast
    newmac=$(openssl rand -hex 6 | sed 's/\(..\)/\1:/g; s/./0/2; s/.$//')
elif [ "$1" == "--orig" ]; then
    newmac=$MYMAC
else
    echo huh?
    exit 1
fi

echo disassociating
sudo /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -z

echo setting mac to: $newmac
sudo ifconfig en0 ether "$newmac"

echo restarting en0
#networksetup -detectnewhardware
sudo ifconfig en0 down
sudo ifconfig en0 up