To grab the image and download, docker has a pull command (sudo docker pull --help)
if well an image without tag, for instance
it will download multiple images of ubuntu as shown below
So, to avoid this downloading of multiple images, we use a tag
So, with a tag,
here, latest is acting a keyword which will bring down the latest version of ubuntu
To check the existing images in your local directory, type
To kill any running docker container,type
To delete any docker container,type
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