docker installation in ubuntu 18.04 code example
Example 1: 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 2: install docker linux
sudo apt-get install -y linux-image-generic-lts-trusty linux-headers-generic-lts-trusty
Example 3: install docker on ubuntu 18.04
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable"
Example 4: install docker on ubuntu 18.04
sudo apt update
Example 5: installer docker ubuntu 18.04
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
Example 6: apt install docker
$ sudo apt-get remove docker docker-engine docker.io containerd runc