Technical Notes

Manpages - nix3-hash.1

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

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Name

nix hash - compute and convert cryptographic hashes

Synopsis

nix hash [/option/…] subcommand

where subcommand is one of the following:

Available commands:

  • nix hash file - print cryptographic hash of a regular file
  • nix hash path - print cryptographic hash of the NAR serialisation of a path
  • nix hash to-base16 - convert a hash to base-16 representation (deprecated, use nix hash convert instead)
  • nix hash to-base32 - convert a hash to base-32 representation (deprecated, use nix hash convert instead)
  • nix hash to-base64 - convert a hash to base-64 representation (deprecated, use nix hash convert instead)
  • nix hash to-sri - convert a hash to SRI representation (deprecated, use nix hash convert instead)

:

  • nix hash convert - convert between hash formats

Options

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  • --refresh Consider all previously downloaded files out-of-date.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. Note See man nix.conf for overriding configuration settings with command line flags.