How to remove a docker image
Docker can quickly delete downloaded images through simple commands. You can view downloaded images through docker images, and delete corresponding containers through image name or image ID.
docker rmi hello-world
docker : An open source application container engine that allows developers to package their applications and dependencies into a portable image rmi : remove one or more images
Untagged: hello-world:latest Untagged: hello-world@sha256:2498fce14358aa50ead0cc6c19990fc6ff866ce72aeb5546e1d59caac3d0d60f Deleted: sha256:feb5d9fea6a5e9606aa995e879d862b825965ba48de054caab5ef356dc6b3412 Deleted: sha256:e07ee1baac5fae6a26f30cabfe54a36d3402f96afda318fe0a96cec4ca393359