lix/src/nix/optimise-store.md
2020-12-21 13:32:28 +01:00

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# Examples
* Optimise the Nix store:
```console
nix store optimise
```
# Description
This command deduplicates the Nix store: it scans the store for
regular files with identical contents, and replaces them with hard
links to a single instance.
Note that you can also set `auto-optimise-store` to `true` in
`nix.conf` to perform this optimisation incrementally whenever a new
path is added to the Nix store. To make this efficient, Nix maintains
a content-addressed index of all the files in the Nix store in the
directory `/nix/store/.links/`.
)""