Docker: Remove all images and containers

gistfile1.txt

#!/bin/bash
# Delete all containers
docker rm $(docker ps -a -q)
# Delete all images
docker rmi $(docker images -q)

As of 1.13.0, see the new prune commands:

docker container prune   # Remove all stopped containers
docker volume prune      # Remove all unused volumes
docker image prune       # Remove unused images
docker system prune      # All of the above, in this order: containers, volumes, images
Bonus:

docker system df         # Show docker disk usage, including space reclaimable by pruning
New Data Management commands PR: docker/docker#26108