How to Stop All Docker Containers
docker kill $(docker ps -q)
docker ps: Lists all running containers.
-q only return the container IDs.
docker kill: Stops the continers by container ID.
Remove all containers
docker rm $(docker ps -a -q)
docker ps -a -q: Lists all containers (including non-running) and only return their IDs.
docker rm: Remove containers by their ID.
Remove all images
docker rmi $(docker images -q)
docker images -q: Lists all images by their IDs.
docker rmi: Removes docker images by their ID.