#!/bin/bash # This script allows you to change your MAC address. Proper # syntax is as follows: # change-mac home # Changes MAC Address to Original # change-mac # Changes MAC Address to One Specified # change-mac random # Changes MAC Address Randomly # .macs.dat required format: # XX:XX:XX:XX:XX:XX file=~/bin/.macs.dat if [ -z $file ] ; then echo "File $file Does Not Exist" exit 0 fi NB_LINES=$(expr $(wc -l $file | sed -e 's/ *//' | cut -f1 -d " ")) NB_RAND=0 while [ "$NB_RAND" -eq 0 ] do NB_RAND=$(expr $RANDOM \% $NB_LINES) done random=`sed -n "${NB_RAND}p;${NB_RAND}q" $file` if [ "$1" == home ]; then ifconfig eth0 down ifconfig eth0 hw ether XX:XX:XX:XX:XX:XX # Change to your original MAC address ifconfig eth0 up echo "Original MAC Address Restored." exit 0 elif [ "$1" == random ]; then ifconfig eth0 down ifconfig eth0 hw ether $random ifconfig eth0 up echo "MAC Address Randomly Changed To $random" exit 1 elif [ "$1" ]; then ifconfig eth0 down ifconfig eth0 hw ether $1 ifconfig eth0 up echo "MAC Address Changed To $1." exit 2 else echo "change-mac home # Changes MAC Address to Original" echo "change-mac # Changes MAC Address to One Specified" echo "change-mac random # Changes MAC Address Randomly" exit 3 fi