change mac address on every boot in kali linux HD

Create a script called mac.sh in /etc/init.d/ directory(login as root) # vi /etc/init.d/mac.sh ii) Add commands to this script #!/bin/bash ifconfig wlan0 down macchanger -r wlan0 ifconfig wlan0 up save the file iii) Setup executable permission on script: # chmod +x /etc/init.d/mac.sh iv)Make sure this script get executed every time Debian Linux system boot up/comes up: # update-rc.d mac.sh defaults 100