---
name: "nix3-store"
section: "1"
platform: "linux"
package: "nix-bin"
version: "2.26.3+dfsg-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/nix3-store"
---

# nix3-store(1)

manipulate a Nix store

**Warning** \
 This program is **experimental** ⟨@docroot@/development/experimental-features.md#xp-feature-nix-command⟩ and its interface is subject to change.

## Name

`nix store` - manipulate a Nix store

## Synopsis

`nix store` \[*option*…\] *subcommand*

where *subcommand* is one of the following:

- •

  `nix store add` ⟨./nix3-store-add.md⟩ - Add a file or directory to the Nix store

- •

  `nix store add-file` ⟨./nix3-store-add-file.md⟩ - Deprecated. Use `nix store add --mode flat` ⟨@docroot@/command-ref/new-cli/nix3-store-add.md⟩ instead.

- •

  `nix store add-path` ⟨./nix3-store-add-path.md⟩ - Deprecated alias to `nix store add` ⟨@docroot@/command-ref/new-cli/nix3-store-add.md⟩\\c .

- •

  `nix store cat` ⟨./nix3-store-cat.md⟩ - print the contents of a file in the Nix store on stdout

- •

  `nix store copy-log` ⟨./nix3-store-copy-log.md⟩ - copy build logs between Nix stores

- •

  `nix store copy-sigs` ⟨./nix3-store-copy-sigs.md⟩ - copy store path signatures from substituters

- •

  `nix store delete` ⟨./nix3-store-delete.md⟩ - delete paths from the Nix store

- •

  `nix store diff-closures` ⟨./nix3-store-diff-closures.md⟩ - show what packages and versions were added and removed between two closures

- •

  `nix store dump-path` ⟨./nix3-store-dump-path.md⟩ - serialise a store path to stdout in NAR format

- •

  `nix store gc` ⟨./nix3-store-gc.md⟩ - perform garbage collection on a Nix store

- •

  `nix store info` ⟨./nix3-store-info.md⟩ - test whether a store can be accessed

- •

  `nix store ls` ⟨./nix3-store-ls.md⟩ - show information about a path in the Nix store

- •

  `nix store make-content-addressed` ⟨./nix3-store-make-content-addressed.md⟩ - rewrite a path or closure to content-addressed form

- •

  `nix store optimise` ⟨./nix3-store-optimise.md⟩ - replace identical files in the store by hard links

- •

  `nix store path-from-hash-part` ⟨./nix3-store-path-from-hash-part.md⟩ - get a store path from its hash part

- •

  `nix store ping` ⟨./nix3-store-ping.md⟩ - test whether a store can be accessed

- •

  `nix store prefetch-file` ⟨./nix3-store-prefetch-file.md⟩ - download a file into the Nix store

- •

  `nix store repair` ⟨./nix3-store-repair.md⟩ - repair store paths

- •

  `nix store sign` ⟨./nix3-store-sign.md⟩ - sign store paths with a local key

- •

  `nix store verify` ⟨./nix3-store-verify.md⟩ - verify the integrity of store paths

## Options

### Logging-related options

- •

  `--debug` ⟨#opt-debug⟩

-

  Set the logging verbosity level to ‘debug’.

- •

  `--log-format` ⟨#opt-log-format⟩ *format*

-

  Set the format of log output; one of `raw`, `internal-json`, `bar` or `bar-with-logs`.

- •

  `--print-build-logs` ⟨#opt-print-build-logs⟩ / `-L`

-

  Print full build logs on standard error.

- •

  `--quiet` ⟨#opt-quiet⟩

-

  Decrease the logging verbosity level.

- •

  `--verbose` ⟨#opt-verbose⟩ / `-v`

-

  Increase the logging verbosity level.

### Miscellaneous global options

- •

  `--help` ⟨#opt-help⟩

-

  Show usage information.

- •

  `--offline` ⟨#opt-offline⟩

-

  Disable substituters and consider all previously downloaded files up-to-date.

- •

  `--option` ⟨#opt-option⟩ *name* *value*

-

  Set the Nix configuration setting *name* to *value* (overriding `nix.conf`).

- •

  `--refresh` ⟨#opt-refresh⟩

-

  Consider all previously downloaded files out-of-date.

- •

  `--version` ⟨#opt-version⟩

-

  Show version information.

  **Note**

  See `man nix.conf` ⟨@docroot@/command-ref/conf-file.md#command-line-flags⟩ for overriding configuration settings with command line flags.