How to install latest Docker CE on Ubuntu 17.04 16.04 Linux Debian

https://docs.docker.com/engine/installation/linux/ubuntu/

1)
Uninstall old versions of Docker
Older versions of Docker were called docker or docker-engine. If these are installed, uninstall them:

$ sudo apt-get remove docker docker-engine

2)
Install packages to allow apt to use a repository over HTTPS:

$sudo apt-get update

$ sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    software-properties-common

3)
Add Docker’s official GPG key:

$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

4)
Verify that the key fingerprint is 9DC8 5822 9FC7 DD38 854A E2D8 8D81 803C 0EBF CD88.
$ sudo apt-key fingerprint 0EBFCD88

5)
Use the following command to set up the stable docker ubuntu repository.

$ sudo add-apt-repository \
   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
   $(lsb_release -cs) \
   stable"

6)
Install Docker
Update the apt package index.
$ sudo apt-get update

7)
Install the latest version of Docker.
$ sudo apt-get install docker-ce

OR

Install a specific version of Docker.
$ sudo apt-get install docker-ce=

8)
Verify that Docker CE.
$ sudo docker run hello-world

This command downloads a test image and runs it in a container. When the container runs, it prints an informational message and exits.
Docker is installed and running. You need to use sudo to run Docker commands.