Name

       nix nar - create or inspect NAR files

Synopsis

       nix nar [option…] subcommand

       where subcommand is one of the following:

       •  nix nar cat - print the contents of a file inside a NAR file on stdout
       •  nix nar dump-path - serialise a path to stdout in NAR format
       •  nix nar ls - show information about a path inside a NAR file
       •  nix nar pack - serialise a path to stdout in NAR format

Description

       nix nar provides several subcommands for creating and inspecting Nix Archives (NARs).

File format

       For the definition of the Nix Archive file format, see within the protocols chapter of the manual.

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          Consider all previously downloaded files out-of-date.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

                                                                                                     nix3-nar(1)