Ubuntu: Assign IP

ubuntu_assign_ip.sh

#!/bin/bash
# Become root
sudo su

# Update /etc/network/interfaces
NEW_IP=$(ip route get 8.8.8.8 | awk '{print $NF; exit}')
sed -i 's/dhcp/static/g' /etc/network/interfaces
echo "    address ${NEW_IP}" >> /etc/network/interfaces
echo "    netmask 255.255.0.0" >> /etc/network/interfaces
echo "    broadcast 172.16.255.255" >> /etc/network/interfaces
echo "    gateway 172.16.255.250" >> /etc/network/interfaces
echo "    dns-nameservers 172.16.0.11 172.16.0.17" >> /etc/network/interfaces
echo "    dns-search csplab.local" >> /etc/network/interfaces

# Restart
shutdown -r now