Learn the basics of downloading and pulling Docker images from Docker Hub. Learn the difference between default tags and version specific tags. Also learn how to display all images, and different ways to remove images.
Download:
docker pull mongo // download the latest version docker pull mongo:3.0.0 // download the version 3.0 docker pull mhart/alpine-node // download libaray from user mhart
View all images:
docker images
Delete images:
docker rmi mongo docker rmi mogno:3.0.0 docker rmi d508 // delete according to id, id doesn‘t need to be full name unless it is unqiue
[Docker] Download and Remove Docker Images
原文：http://www.cnblogs.com/Answer1215/p/6124298.html