Docker Installation:
$ sudo apt update
$ curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
$ echo 'deb [arch=amd64] https://download.docker.com/linux/debian buster stable' | sudo tee /etc/apt/sources.list.d/docker.list
$ sudo apt update
$ sudo apt remove docker docker-engine docker.io
$ sudo apt install docker-ce -y
$ sudo systemctl start docker
$ sudo systemctl enable Docker
$ sudo Docker run hello-world

Run:
 Docker hub.docker.com
 Docker pull
 Docker helloWorld
 Docker remove image rmi, remove container rm
 Simple Run: docker run --name [container_name] -itd [repository_image] /bin/bash
 sudo docker exec -it [container_name] /bin/bash
 Customized create: docker create --name docker2 -p 2222:22 -it [container_name] /bin/bash
 Docker start dockorized_LIN, docker stop dockorized_LIN
 Docker ps, docker rm -f
 Docker cp