steps require to install ubuntu 18.04 LTS from 16.04 LTS

ubuntu.sh

## Upgrading ubuntu from 16.04LTS to 18.04LTS using command line 
# first update previous version
sudo apt update && sudo apt upgrade && sudo apt dist-upgrade && sudo apt autoremove

# update manager core
sudo apt install update-manager-core

# make prompt=lts if not in following file
sudo nano /etc/update-manager/release-upgrades

# now upgrade next lts version (after late july 2018)
sudo do-release-upgrade

# things to do after installing 18.04 LTS

sudo apt update && sudo apt upgrade
sudo apt install ubuntu-restricted-extras
sudo apt install gnome-tweak-tool
sudo apt install dconf-tools

# installing cuda driver 
sudo apt install nvidia-cuda-toolkit  
# after installation run nvcc -V to confirm. then

# installing latest nvidia driver
sudo apt-add-repository ppa:graphics-drivers/ppa
sudo apt install nvidia-driver-396
# after a reboot, you can run nvidia-smi 


# don't upgrade pip3 to 10.0
sudo apt install vlc
echo "enjoy"