cleanDocker.sh

#from post
#http://stackoverflow.com/questions/32723111/how-to-remove-old-and-unused-docker-images

#Delete stopped (exited) containers:

docker ps --no-trunc -aqf "status=exited" | xargs docker rm

#Delete unused (dangling) images:

docker images --no-trunc -aqf "dangling=true" | xargs docker rmi

#If you have exercised extreme caution with regard to irrevocable data loss, then you can delete unused (dangling) volumes (v1.9 and up):

docker volume ls -qf "dangling=true" | xargs docker volume rm