Semi-visually delete "dead" docker containers.
$ docker ps -a | view -
Use visual selection 'V' to select the ids of containers to destroy.
Use 'y' to copy the ids.
Create a new buffer, 'badd x'
Use 'p' to paste your text. You should now see a list of the container ids.
Delete all the listed containers: :%! xargs -n5 docker rm