docker shell

csienqu-teacher:~ csienqu$ docker pull ubuntu:latest
latest: Pulling from library/ubuntu
6b98dfc16071: Pull complete 
4001a1209541: Pull complete 
6319fc68c576: Pull complete 
b24603670dc3: Pull complete 
97f170c87c6f: Pull complete 
Digest: sha256:d93e92b9e184f69873bfd8570647a4298b070119baad4f65d003c96464d858da
Status: Downloaded newer image for ubuntu:latest
csienqu-teacher:~ csienqu$ docker images
REPOSITORY                   TAG                 IMAGE ID            CREATED             SIZE
ubuntu                       latest              113a43faa138        3 hours ago         81.2MB
<none>                       <none>              c0018dca3b61        41 hours ago        4.43GB
<none>                       <none>              b20e428a79fa        41 hours ago        4.43GB
<none>                       <none>              110a8f309bc6        41 hours ago        831MB
neold2028/nqu1062-ai-keras   latest              3a6c3a5d7577        2 days ago          4.43GB
tensorflow/tensorflow        latest              e7a53807ee54        5 weeks ago         1.33GB
ubuntu                       <none>              20c44cd7596f        6 months ago        123MB