how to use docker on linux code example

Example 1: install docker linux

sudo apt-get install -y xserver-xorg-lts-trusty libgl1-mesa-glx-lts-trusty

Example 2: install docker linux

$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

Example 3: docker for linux

$ sudo apt-get remove docker docker-engine docker.io containerd runc