You may have found
docker rm command to remove a docker container. However, this works only for a single container and it would be very painful to run this command for every non-running docker container. Luckily, since Docker 1.13 there is a more elegant solution.
How to remove old Docker containers?
To remove all stopped containers, run the following command:
docker container prune
There is also system prune, which will clean up all unused containers, networks, images (both dangling and unreferenced), and optionally, volumes, in one command.
docker system prune
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How to Remove a Docker Image?
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