How to install NVIDIA drivers on Dell Inspiron 15R N5110 laptop system with dual Intel/Nvidia graphics processors.

script.sh

#!/bin/bash

## Removing current Nvidia installation.

sudo apt-get purge nvidia*
sudo apt-get purge bumblebee*
sudo apt-get update
sudo apt-get dist-upgrade

## Installing Kernel header if didn't already

sudo apt-get install linux-headers-generic

## Bumblebee Installation

sudo add-apt-repository ppa:bumblebee/stable
sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update

sudo apt-get install bumblebee bumblebee-nvidia