Docker: delete all tags of image

Handy one liner to delete all tags of a particular docker image (on Linux):

docker images | grep rabbitmq | tr -s ' ' | cut -d ' ' -f 2 | xargs -I {} docker rmi docker-staging-local.artifactory.corp.alleninstitute.org/rabbitmq:{}

Here are the image tags that this one-liner removes:

1 2 3 4 5 6 7

thusharaw@denali ois-rabbitmq (thushara/rabbitv1)*$ docker images | grep rabbitmq docker-staging-local.artifactory.corp.alleninstitute.org/rabbitmq 2017031300 6fb1ed865ae6 3 hours ago 179 MB docker-staging-local.artifactory.corp.alleninstitute.org/rabbitmq 2017031307 6fb1ed865ae6 3 hours ago 179 MB docker-staging-local.artifactory.corp.alleninstitute.org/rabbitmq 2017031007 21b84ae0586e 2 days ago 179 MB docker-staging-local.artifactory.corp.alleninstitute.org/rabbitmq 201703100 43d51d243631 2 days ago 179 MB docker-staging-local.artifactory.corp.alleninstitute.org/rabbitmq 201703107 08927efd735e 2 days ago 179 MB docker-staging-local.artifactory.corp.alleninstitute.org/rabbitmq 201703109 646cb7852d8e 2 days ago 179 MB

Let's break down the on-liner:

1) docker images => 

get the images

2) grep rabbitmq

find the tags you care about

3) tr -s ' '

convert all repeating contiguous spaces to a single space so we can easily index to a specific column, the tag in this case

4) xargs -I {} docker rmi docker-staging-local.artifactory.corp.alleninstitute.org/rabbitmq:{} 

pass the thusly recovered tag to the `docker rmi` command, but use xargs to change the stdout of the previous cmd to a cmd line arg (which is what `docker rmi` works with)