How to run Docker?

I would like to be able to run docker on my instance via command line. I had a look at the previous advice on how to start this but I do not understand how to get started. Would someone be able to help me get started please?

Many thanks

(if I type docker version I currently get the following:
docker version
Version: 17.05.0-ce
API version: 1.29
Go version: go1.7.5
Git commit: 89658be
Built: Thu May 4 22:10:54 2017
OS/Arch: linux/amd64
Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.29/version: dial unix /var/run/docker.sock: connect: permission denied

Docker is already running on your GVL instance, but as you can see here, you need to allow your ubuntu user to access Docker.

Instead of editing /etc/groups directly, you can simplify @nickloman’s instructions by running the following command to add ubuntu to the docker group:

sudo usermod -aG docker ubuntu

Then log out and back in again for the change to take effect.

Please note that this only gets you up-and-running with access to the Docker daemon, please ask again if there’s specific software you’d like to run with Docker, or you want to package software to run in Docker.

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