install specific docker version ubuntu 20.04 code example

Example 1: install docker in ubuntu

$ sudo apt-get remove docker docker-engine docker.io
$ sudo apt-get update
$ sudo apt install docker.io
$ sudo snap install docker
$ docker --version

Example 2: install docker linux

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