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Update filter.md 

* Clarify the description in the "Combining filters" section to accurately reflect the behavior of the provided example
* Fix grammar errors
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Yuki Sasaki 2023-11-18 11:12:28 +09:00 committed by GitHub
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@ -39,7 +39,7 @@ alpine 3.16 a8cbb8c69ee7 40 minutes ago 8.67MB
alpine latest 7144f7bab3d4 40 minutes ago 11.7MB
```
The available fields (`reference` in this case) depends on the command you run.
The available fields (`reference` in this case) depend on the command you run.
Some filters expect an exact match. Others handle partial matches. Some filters
let you use regular expressions.
@ -49,8 +49,8 @@ about the supported filtering capabilities for each command.
## Combining filters
You can combine multiple filters by passing multiple `--filter` flags. The
following example shows how to print all images that don't match
`alpine:latest` or `busybox` - a logical `OR`.
following example shows how to print all images that match `alpine:latest` or
`busybox` - a logical `OR`.
```console
$ docker images
@ -71,17 +71,17 @@ busybox glibc 7338d0c72c65 2 hours ago 6.09MB
### Multiple negated filters
Some commands support negated filters on [labels](./labels-custom-metadata.md).
Negated filters only consider results don't match the specified patterns. The
following command prunes all containers that aren't labeled `foo`.
Negated filters only consider results that don't match the specified patterns.
The following command prunes all containers that aren't labeled `foo`.
```console
$ docker container prune --filter "label!=foo"
```
There's a catch in combining multiple negated label filters. Multiple negated
filters a single negative constraint - a logical `AND`. The following command
prunes all containers except those labeled both `foo` and `bar`. Containers
labeled either `foo` or `bar`, but not both, will be pruned.
filters create a single negative constraint - a logical `AND`. The following
command prunes all containers except those labeled both `foo` and `bar`.
Containers labeled either `foo` or `bar`, but not both, will be pruned.
```console
$ docker container prune --filter "label!=foo" --filter "label!=bar"