Linux randomly set MAC address

For privacy needs, do not want to expose the real MAC address, the following script to add the contents of the/ETC/INIT.D, you can at each boot time for the network card randomly set a MAC address.

#!/bin/bash#Chorder#2016/12/08    mhash=' Date+%s|md5sum '    ifconfigEth0 downifconfigEth0 HW ether' echo ${mhash:$ ((RANDOM% 13)): 2}:${mhash:$ ((RANDOM% 13)): 2}:${mhash:$ ((RANDOM% 13)): 2}:${mhash:$ ((RANDOM% 15)): 2}:${mhash:$ ((RANDOM% 15)): 2}:${mhash:$ ((RANDOM% 15)): 2} `ifconfigEth0 upifconfigWlan0 downifconfigWlan0 HW ether' echo ${mhash:$ ((RANDOM% 13)): 2}:${mhash:$ ((RANDOM% 13)): 2}:${mhash:$ ((RANDOM% 13)): 2}:${mhash:$ ((RANDOM% 15)): 2}:${mhash:$ ((RANDOM% 15)): 2}:${mhash:$ ((RANDOM% 15)): 2} `ifconfigWlan0 up

Linux randomly set MAC address