[root@localhost ~]# docker pull centos Using default tag: latest latest: Pulling from library/centos 45a2e645736c: Pull complete Digest: sha256:c577af3197aacedf79c5a204cd7f493c8e07ffbce7f88f7600bf19c688c38799 Status: Downloaded newer image for centos:latest [root@localhost ~]# docker pull centos:7 7: Pulling from library/centos Digest: sha256:c577af3197aacedf79c5a204cd7f493c8e07ffbce7f88f7600bf19c688c38799 Status: Downloaded newer image for centos:7 [root@localhost ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos 7 67591570dd29 4 days ago 191.8 MB centos latest 67591570dd29 4 days ago 191.8 MB hello-world latest c54a2cc56cbb 5 months ago 1.848 kB [root@localhost ~]#
