how to install docker in ubuntu 18.04 using terminal code example

Example 1: how to install docker ubuntu

sudo apt-get update
sudo apt-get upgrade
sudo apt install docker.io
systemctl start docker
systemctl enable docker
docker --version

Example 2: intall docker ubuntu command

$ sudo apt-get update
 $ sudo apt-get install docker-ce docker-ce-cli containerd.io

Example 3: install docker on ubuntu 18.04

sudo apt install docker-ce
https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-18-04

Example 4: how to start docker in ubuntu

systemctl start docker
# to start docker from terminal

Example 5: install docker on ubuntu 18.04

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