tldr/pages/common/nix3-store.md

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# nix store
> Manipulate the Nix store.
> See also: `nix-store`.
> More information: <https://nixos.org/manual/nix/stable/command-ref/new-cli/nix3-store.html>.
- Collect garbage, i.e. remove unused paths to reduce space usage:
`nix store gc`
- Hard-link identical files together to reduce space usage:
`nix store optimise`
- Delete a specific store path (most be unused):
`nix store delete {{/nix/store/...}}`
- List a contents of the store path, on a remote store:
`nix store --store {{https://cache.nixos.org}} ls {{/nix/store/...}}`
- Show the differences in versions between two store paths, with their respective dependencies:
`nix store diff-closures {{/nix/store/...}} {{/nix/store/...}}`