# snapdir ancestors

List ancestor snapshot IDs and their locations.

`ancestors` walks the catalog history for a snapshot and prints the IDs that
precede it, along with where they were recorded. See the
[History guide](../guide/history.md).

## Usage

```text
snapdir ancestors [OPTIONS]
```

### Options

`ancestors` takes no positional arguments. It accepts the
[global options](overview.md#global-options); the most relevant are `--id`
(snapshot whose ancestors to list), `--location`, and `--catalog`.

## Examples

List the ancestors of a snapshot:

```console
snapdir ancestors --id 1220abc...
```

List ancestors scoped to a particular location:

```console
snapdir ancestors --id 1220abc... --location /srv/project
```

## See also

- [`snapdir revisions`](snapdir-revisions.md) — list snapshot IDs for a location
- [`snapdir locations`](snapdir-locations.md) — list known locations
- [History guide](../guide/history.md)