Docker is a great tool for building and shipping apps. At /e/OS the organization were I work we use it to build our officially supported Smartphone OS.
I used to build ROM’s using the traditional Repo Sync way , writing commands and waiting for them to execute. After trying out Docker I have now become a fan!
Docker combines all the commands and executes them without you having to interfere in the process.

These are a set of commands I find very useful when executing or using Docker containers.

Command to Stop all running containers
_{(use with caution)}

docker stop $(docker ps -aq)

Command to Delete all containers

(use with caution)

docker rm $(docker ps -a -q)

Command to Delete all images

_{(use with caution)}

docker rmi $(docker images -q)

Command to Show all images

docker image ls

Command to Remove image by id

_{You can retrieve the image ID by executing the previous command}

docker rmi 75f08d5b848d

_{Here the 75f08xxxx you see in the command above is an image id retrieved by the above command}

Interested in learning more about Docker ? Try out this tutorial