[@ IPha the root-dev71- . 1 Docker] # # search mirrored Python Docker Search [@ IPha the root -dev71- . 1 Docker] # Docker pull CentOS / Python - 36 - centos7 download image # [@ IPha the root -dev71- . 1 Docker] # docker images # view mirror (corresponding to the following fields: version number creation time image repository name ID) the rEPOSITORY the TAG ID cREATED the iMAGE SIZE CentOS / Python - 36 -centos7 Latest 046b1b132fcb . 4 Days ago Member 717MB Hello -World Latest fce289e99eb9 . 8 months ago Member . 1 .84kB Training/ Latest 6fae60ef3446 the webapp . 4 years ago Member 349MB [@ IPha the root-dev71- . 1 Docker] # Docker RMI Hello- World: Delete Latest image # [@ IPha the root -dev71- . 1 Home] -o # Docker Save / Home / docker_dir / Python . tar CentOS / Python - 36 -centos7 # mirrored save, -o is written to the specified file name and path