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---
mapped_pages:
- https://www.elastic.co/guide/en/elasticsearch/client/curator/current/option_shrink_prefix.html
---
# shrink_prefix [option_shrink_prefix]
::::{note}
This setting is only used by the [shrink](/reference/shrink.md) action.
::::
```yaml
action: shrink
description: >-
Shrink selected indices on the node with the most available space.
Prepend target index names with 'foo-' and append a suffix of '-shrink'
options:
shrink_node: DETERMINISTIC
shrink_prefix: 'foo-'
shrink_suffix: '-shrink'
filters:
- filtertype: ...
```
There is no default value for this setting.
The value of this setting will be prepended to target index names. If the source index were `index`, and the `shrink_prefix` were `foo-`, and the `shrink_suffix` were `-shrink`, the resulting target index name would be `foo-index-shrink`.
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