Shell script calls sudo; how do I suppress the password prompt

Question

I am writing a simple shell script which changes the mac address of the network hardware. One of the line is :

sudo ifconfig eth0 hw ether 00:99:99:00:00:00
         


        

Answer 1

A safer way to do it would be:

sudo visudo -f sudoers

then add

myuser ALL=NOPASSWD:/sbin/ifconfig

to the editor window that appeared. Once you are done, use :x to quit