docker.txt

(In order to install the right way, follow guidelines on website, but following does the job)
Install 
sudo apt-get install docker docker.io

Help
docker -h/docker --help

Search for package/docker image 'linux' (If you want to filter for results having stars 5 or more add -s 5)
docker search linux

Create a docker image 'test', using oraclelinux version 7
docker create --name test oraclelinux:7

Create a docker image 'test', using oraclelinux version 7 with a specific software
docker create --name test oraclelinux:7	/bin/bash

Information about entire docker system about containers/statuses 
docker info

In order to pull/download an image
docker pull ubuntu

In order to see what images are downloaded
docker images

In order to see all containers
docker ps -a

Run a command (following will automatically pull the image if not available)
docker run fedora echo "hello"

Run a container with a terminal 
docker run -it ubuntu /bin/bash

Recent activity from a particular container
docker logs b336de20e2ff
(for detailed inspection)
docker inspect b336de20e2ff

Create your own container
docker create -it --name mycontainer centos:6.8 /bin/bash

Remove a container
docker rm 3f1e1e65703a