Docker Shortcuts

Delete images without a tag

# This works becuase tagless images look like this:
#
# REPOSITORY            TAG                 IMAGE ID            CREATED             SIZE
# <none>                <none>              39c3774dd2fb        10 minutes ago      417 MB

docker rmi $(docker images -a | grep none)

Remove Containers That Don't Match String

# Get hash of first column and reverse grep containers called "fake"
docker rm $(docker ps -a | grep -v fake | awk '{print $1}')