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


nix hash path - print cryptographic hash of the NAR serialisation of a path


nix hash path [option...] paths...


  • --base16 Print the hash in base-16 format.

  • --base32 Print the hash in base-32 (Nix-specific) format.

  • --base64 Print the hash in base-64 format.

  • --sri Print the hash in SRI format.

  • --type hash-algo hash algorithm ('md5', 'sha1', 'sha256', or 'sha512')

Logging-related options:

  • --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  • --refresh Consider all previously downloaded files out-of-date.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.

Options to override configuration settings: