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docker_practice/image/save_load.md
Kang Li dcb2cfe246 better translations 
Sorry I don't know much about the word 'save-out', but here are some common translations of docker commands in Chinese:

save: 保存
load: 加载
export: 导出 
import: 导入

It seems that there is a big difference between 'save' and 'export' in Docker, it will be great if you make a detail explanation :P
2016-09-14 13:37:21 +08:00

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保存和加载镜像

保存镜像

如果要保存镜像到本地文件，可以使用 docker save 命令。

$ sudo docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
ubuntu              14.04               c4ff7513909d        5 weeks ago         225.4 MB
...
$sudo docker save -o ubuntu_14.04.tar ubuntu:14.04

加载镜像

可以使用 docker load 从导出的本地文件中再加载到本地镜像库，例如

$ sudo docker load --input ubuntu_14.04.tar

或

$ sudo docker load < ubuntu_14.04.tar

这将加载镜像以及其相关的元数据信息（包括标签等）。