installing docker on 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 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 3: install docker on ubuntu 20.04

sudo apt install docker.io

Example 4: install docker on ubuntu 20.04

$ sudo apt-get update

$ sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

Example 5: install docker on ubuntu 18.04

sudo apt update

Example 6: docker install in ubuntu 20.04

$ echo \
  "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null