Ubuntu CHANGE to static IP

#!/bin/bash
#
# Edit /etc/network/interfaces to meet your requirements.
#
address="192.168.1.1"
netmask="255.255.255.0"
network="192.168.1.0"
broadcast="192.168.1.255"
gateway="192.168.1.1"
dnsnameservers="192.168.1.1 8.8.8.8 8.8.4.4"
#
sudo sed -i 's!dhcp!static!g' /etc/network/interfaces
sudo sed -i '$ a\address $address' /etc/network/interfaces
sudo sed -i '$ a\netmask $netmask' /etc/network/interfaces
sudo sed -i '$ a\network $network' /etc/network/interfaces
sudo sed -i '$ a\broadcast $broadcast' /etc/network/interfaces
sudo sed -i '$ a\gateway $gateway' /etc/network/interfaces
sudo sed -i '$ a\dns-nameservers $dnsnameservers' /etc/network/interfaces
#
# restart network
sudo service networking restart
#