How to install Linex Kernel Headers on Kali Linux 2.0

Just installed Kali Linux 2.0 or upgraded to Kali Linux 2.0 and you need to install Kernel headers?. On our previous article we talked about how to upgrade to Kali Linux 2.0 (Kali Sana) from 1.x version of Kali Linux.When you install new Kali Linux, it doesn't come with  Linux kernel headers out of the box and you'll have to install them manually, the easiest way to do that will be explained shortly.
Kernel Header files in the Linux kernel are used for two purposes:

• To define interfaces between components of the kernel, and
• To define interfaces between the kernel and user space 

Linux headers are needed for building modules that load into the kernel provided by the Linux kernel. When you need to run virtual machines using hypervisors such as Virtualbox and Vmware Workstation on Kali Linux, it will require you to have Linux kernel headers installed.
Follow the following short tutorial on how to install Linux kernel headers. If you are on Kali Linux 2.0, make sure you have the following repositories on your sources.list file:

leafpad /etc/apt/sources.list

or

vi /etc/apt/sources.list

If the following repositories doesn't exist, overwrite old ones with ones below.

# Regular Repositories
deb http://http.kali.org/kali sana main non-free contrib
deb http://security.kali.org/kali-security sana/updates main contrib non-free
# Source repositories
deb-src http://http.kali.org/kali sana main non-free contrib
deb-src http://security.kali.org/kali-security sana/updates main contrib non-free

Then do

 sudo apt-get update
 sudo apt-get upgrade

After that,check your kernel version by typing:

uname -r

Now install kernel headers by typing:

apt-get install linux-headers-'value_of uname -r command'

For example

apt-get install linux-headers-4.0.0-kali1-amd64

See screeshot below for more details

 If your Kali Linux version is 1.x, just do:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install linux-headers-$(uname -r)