How To Install and Use Docker on Ubuntu 18.04

1)

sudo apt update

2)

sudo apt install apt-transport-https ca-certificates curl software-properties-common

3)

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

4)

sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable"

5)

sudo apt update

6)

apt-cache policy docker-ce

7)

sudo apt install docker-ce

8)

sudo systemctl status docker

9)

docker info

10)

docker run hello-world