22-Docker-常用命令详解-docker pull

docker pull [OPTIONS] NAME[:TAG|@DIGEST]
# TAG：标签，不写的话默认是 latest 最新版

docker pull java tomcat
dh@DH:~$ docker pull tomcat
Using default tag: latest   # 未指定tag 默认latest
latest: Pulling from library/tomcat
2b55860d4c66: Pull complete  # 本地没有对应的文件，需要下载，后面再用到该文件的时候就不用再下载了
49a58ffb4a94: Pull complete
8889343dc9d4: Pull complete
5c321d92dfdb: Pull complete
65e12e19b4c9: Pull complete
31c5670ba66a: Pull complete
4196dee71f9b: Pull complete
Digest: sha256:bb81645575fef90e48e6f9fff50e06d5b78d4ac9d2683845401164ba1ddfe199  # 签名
Status: Downloaded newer image for tomcat:latest  
docker.io/library/tomcat:latest  # 镜像地址

docker pull -a tomcat