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% podman-image-diff 1
## NAME
podman-image-diff - Inspect changes on an image's filesystem
## SYNOPSIS
**podman image diff** [*options*] *image* [*image*]
## DESCRIPTION
Displays changes on an image's filesystem. The image will be compared to its parent layer or the second argument when given.
The output is prefixed with the following symbols:
| Symbol | Description |
|--------|-------------|
| A | A file or directory was added. |
| D | A file or directory was deleted. |
| C | A file or directory was changed. |
## OPTIONS
#### **--format**
Alter the output into a different format. The only valid format for **podman image diff** is `json`.
## EXAMPLE
```
$ podman diff redis:old
C /usr
C /usr/local
C /usr/local/bin
A /usr/local/bin/docker-entrypoint.sh
```
```
$ podman diff --format json redis:old redis:alpine
{
"changed": [
"/usr",
"/usr/local",
"/usr/local/bin"
],
"added": [
"/usr/local/bin/docker-entrypoint.sh"
]
}
```
## SEE ALSO
**[podman(1)](podman.1.md)**, **[podman-image(1)](podman-image.1.md)**
## HISTORY
August 2017, Originally compiled by Ryan Cole <rycole@redhat.com>
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