# nix store > Manipulate the Nix store. > See also: `tldr nix-store`. > More information: . - 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/...}}`