A help command
1.[root@MiWiFi-R3-srv docker]# docker version
Similar java version
2.[root@MiWiFi-R3-srv docker]# docker info
More comprehensive than the version
3.[root@MiWiFi-R3-srv docker]# docker --help
Linux-like man command
Second, the mirror command
1.docker images
1.1docker images
We use REPOSITORY: TAG to define different image, if you do not specify a version label, Docker will use the latest version of the default label.
1.2options Description
2.docker search a name XXXX mirror
Find Mirror
3.docker pull a mirror name XXXX
Download image
tomcat: latest The latest version can be replaced with the specified label, such as tomcat: 3.2
4.docker rmi a mirror name XXXX
Remove Mirror
Delete All: docker -rmi -f ¥ (docker images -qa)
Reference document: Silicon Valley is still docker instructional videos