Installing Docker 1 sudo apt-get remove docker docker-engine docker.io 2 sudo apt-get update 3 sudo apt-get install \ apt-transport-https \ ca-certificates \ curl \ gnupg-agent \ software-properties-common 4 curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - 5 sudo apt-key fingerprint 0EBFCD88 6 sudo add-apt-repository \ "deb [arch=amd64] https://download.docker.com/linux/ubuntu \ $(lsb_release -cs) \ stable" 7 sudo apt-get update 8 sudo apt-get install docker-ce docker-ce-cli containerd.io 9 sudo docker run hello-world List Docker CLI commands 1 docker 2 docker container --help Display Docker version and info 1 docker --version 2 docker version 3 docker info Execute Docker image 1 docker run hello-world List Docker images 1 docker image ls List Docker containers (running, all, all in quiet mode) 1 docker container ls 2 docker container ls --all 3 docker container ls -aq Remove docker image 1 docker rmi <<imageName>>