This program is experimental and its interface is subject to change.


nix store info - test whether a store can be accessed


nix store info [option...]


  • Test whether connecting to a remote Nix store via SSH works:

    # nix store info --store ssh://mac1
  • Test whether a URL is a valid binary cache:

    # nix store info --store https://cache.nixos.org
  • Test whether the Nix daemon is up and running:

    # nix store info --store daemon


This command tests whether a particular Nix store (specified by the argument --store url) can be accessed. What this means is dependent on the type of the store. For instance, for an SSH store it means that Nix can connect to the specified machine.

If the command succeeds, Nix returns a exit code of 0 and does not print any output.


  • --json

    Produce output in JSON format, suitable for consumption by another program.

  • --debug

    Set the logging verbosity level to 'debug'.

  • --log-format format

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

  • --print-build-logs / -L

    Print full build logs on standard error.

  • --quiet

    Decrease the logging verbosity level.

  • --verbose / -v

    Increase the logging verbosity level.

Miscellaneous global options

  • --help

    Show usage information.

  • --offline

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

  • --option name value

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

  • --refresh

    Consider all previously downloaded files out-of-date.

  • --version

    Show version information.


See man nix.conf for overriding configuration settings with command line flags.