(docker ps -q; docker ps -aq) | sort | uniq -u | xargs --no-run-if-empty docker rm
docker images -f dangling=true -q | xargs --no-run-if-empty docker rmi
(docker ps -q; docker ps -aq) | sort | uniq -u | xargs --no-run-if-empty docker rm
docker images -f dangling=true -q | xargs --no-run-if-empty docker rmi