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nix3-help(1) General Commands Manual nix3-help(1)

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

Name

nix help - show help about nix or a particular subcommand

Synopsis

nix help [option…] subcommand…

Examples

•
Show help about nix in general:

# nix help
•
Show help about a particular subcommand:



  # nix help flake info

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Consider all previously downloaded files out-of-date.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