Examples:

• ip addr del 127.0.0.1/8 dev lo

  -- deletes the loopback address from the loopback device. It would be best not to repeat this experiment.

• Disable IP on the interface eth0:

    while ip -f inet addr del dev eth0; do
      : nothing
    done
  

  Another method to disable IP on an interface using ip addr flush may be found in sec.5.4, p..