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moby--moby/docs/reference/commandline/system_prune.md
Yong Tang 58738cdee3 Add --filter until=<timestamp> for docker container/image prune
This fix is a follow up for comment
https://github.com/docker/docker/pull/28535#issuecomment-263215225

This fix provides `--filter until=<timestamp>` for `docker container/image prune`.

This fix adds `--filter until=<timestamp>` to `docker container/image prune`
so that it is possible to specify a timestamp and prune those containers/images
that are earlier than the timestamp.

Related docs has been updated

Several integration tests have been added to cover changes.

This fix fixes #28497.

This fix is related to #28535.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
2017-01-04 14:16:42 -08:00

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---
title: "system prune"
description: "Remove unused data"
keywords: "system, prune, delete, remove"
---
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# system prune
```markdown
Usage: docker system prune [OPTIONS]
Delete unused data
Options:
-a, --all Remove all unused images not just dangling ones
--filter filter Provide filter values (e.g. 'until=<timestamp>')
-f, --force Do not prompt for confirmation
--help Print usage
```
Remove all unused containers, volumes, networks and images (both dangling and unreferenced).
Example output:
```bash
$ docker system prune -a
WARNING! This will remove:
- all stopped containers
- all volumes not used by at least one container
- all networks not used by at least one container
- all images without at least one container associated to them
Are you sure you want to continue? [y/N] y
Deleted Containers:
0998aa37185a1a7036b0e12cf1ac1b6442dcfa30a5c9650a42ed5010046f195b
73958bfb884fa81fa4cc6baf61055667e940ea2357b4036acbbe25a60f442a4d
Deleted Volumes:
named-vol
Deleted Images:
untagged: my-curl:latest
deleted: sha256:7d88582121f2a29031d92017754d62a0d1a215c97e8f0106c586546e7404447d
deleted: sha256:dd14a93d83593d4024152f85d7c63f76aaa4e73e228377ba1d130ef5149f4d8b
untagged: alpine:3.3
deleted: sha256:695f3d04125db3266d4ab7bbb3c6b23aa4293923e762aa2562c54f49a28f009f
untagged: alpine:latest
deleted: sha256:ee4603260daafe1a8c2f3b78fd760922918ab2441cbb2853ed5c439e59c52f96
deleted: sha256:9007f5987db353ec398a223bc5a135c5a9601798ba20a1abba537ea2f8ac765f
deleted: sha256:71fa90c8f04769c9721459d5aa0936db640b92c8c91c9b589b54abd412d120ab
deleted: sha256:bb1c3357b3c30ece26e6604aea7d2ec0ace4166ff34c3616701279c22444c0f3
untagged: my-jq:latest
deleted: sha256:6e66d724542af9bc4c4abf4a909791d7260b6d0110d8e220708b09e4ee1322e1
deleted: sha256:07b3fa89d4b17009eb3988dfc592c7d30ab3ba52d2007832dffcf6d40e3eda7f
deleted: sha256:3a88a5c81eb5c283e72db2dbc6d65cbfd8e80b6c89bb6e714cfaaa0eed99c548
Total reclaimed space: 13.5 MB
```
## Filtering
The filtering flag (`-f` or `--filter`) format is of "key=value". If there is more
than one filter, then pass multiple flags (e.g., `--filter "foo=bar" --filter "bif=baz"`)
The currently supported filters are:
* until (`<timestamp>`) - only remove containers, images, and networks created before given timestamp
The `until` filter can be Unix timestamps, date formatted
timestamps, or Go duration strings (e.g. `10m`, `1h30m`) computed
relative to the daemon machines time. Supported formats for date
formatted time stamps include RFC3339Nano, RFC3339, `2006-01-02T15:04:05`,
`2006-01-02T15:04:05.999999999`, `2006-01-02Z07:00`, and `2006-01-02`. The local
timezone on the daemon will be used if you do not provide either a `Z` or a
`+-00:00` timezone offset at the end of the timestamp. When providing Unix
timestamps enter seconds[.nanoseconds], where seconds is the number of seconds
that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap
seconds (aka Unix epoch or Unix time), and the optional .nanoseconds field is a
fraction of a second no more than nine digits long.
## Related information
* [volume create](volume_create.md)
* [volume ls](volume_ls.md)
* [volume inspect](volume_inspect.md)
* [volume rm](volume_rm.md)
* [volume prune](volume_prune.md)
* [Understand Data Volumes](https://docs.docker.com/engine/tutorials/dockervolumes/)
* [system df](system_df.md)
* [container prune](container_prune.md)
* [image prune](image_prune.md)
* [network prune](network_prune.md)
* [system prune](system_prune.md)