ubuntu server on docker 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: how to install docker in ubuntu using terminal
sudo apt install docker.io # install docker
sudo systemctl start docker # start service
sudo systemctl stop docker # stop service
sudo systemctl status docker # To check status of docker
docker --version # to check the version of docker