Docker Commands copy, remove images.

View existing images

docker images

My output shows like this:

REPOSITORY   TAG       IMAGE ID       CREATED       SIZE
ubuntu       latest    78klio18m   2 weeks ago   77.9MB

**
Rename existing image:**

docker tag <source_name>:<source_tag> <target_name>:<target_tag>

example:

docker tag ubuntu:latest rasa:chatbot

Replace the placeholders:
: The current name of the image.
: The current tag of the image.
: The new name you want to assign to the image.
: (Optional) The new tag you want to assign to the image (if applicable).

Delete existing image

docker rmi ubuntu

finally

docker images
REPOSITORY   TAG       IMAGE ID       CREATED       SIZE
rasa         chatbot   ca8b0f1234c   2 weeks ago   77.9MB