DockerCLI/docs/reference/commandline/save.md

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<!--[metadata]>
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title = "save"
description = "The save command description and usage"
keywords = ["tarred, repository, backup"]
[menu.main]
parent = "smn_cli"
weight=1
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<![end-metadata]-->
# save
Usage: docker save [OPTIONS] IMAGE [IMAGE...]
Save an image(s) to a tar archive (streamed to STDOUT by default)
-o, --output="" Write to a file, instead of STDOUT
Produces a tarred repository to the standard output stream.
Contains all parent layers, and all tags + versions, or specified `repo:tag`, for
each argument provided.
It is used to create a backup that can then be used with `docker load`
$ docker save busybox > busybox.tar
$ ls -sh busybox.tar
2.7M busybox.tar
$ docker save --output busybox.tar busybox
$ ls -sh busybox.tar
2.7M busybox.tar
$ docker save -o fedora-all.tar fedora
$ docker save -o fedora-latest.tar fedora:latest
It is even useful to cherry-pick particular tags of an image repository
$ docker save -o ubuntu.tar ubuntu:lucid ubuntu:saucy