Warning
This program is experimental ⟨@docroot@/development/experimental-features.md#xp-feature-nix-command⟩ and its interface is subject to change.
Name
nix nar cat - print the contents of a file inside a NAR file on stdout
Synopsis
nix nar cat [option…] nar path
Examples
- •
-
List a file in a Nix Archive (NAR) ⟨@docroot@/store/file-system-object/content-address.md#serial-nix-archive⟩ and pipe it through
gunzip:
# nix nar cat ./hello.nar /share/man/man1/hello.1.gz | gunzip .\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.46.4. .TH HELLO "1" "November 2014" "hello 2.10" "User Commands" …
Description
This command prints on standard output the contents of the regular file path inside the NAR file nar.
Options
Logging-related options
- •
-
--debug⟨#opt-debug⟩
-
Set the logging verbosity level to ‘debug’.
- •
-
--log-format⟨#opt-log-format⟩ format
-
Set the format of log output; one of
raw,internal-json,barorbar-with-logs.
- •
-
--print-build-logs⟨#opt-print-build-logs⟩ /-L
-
Print full build logs on standard error.
- •
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--quiet⟨#opt-quiet⟩
-
Decrease the logging verbosity level.
- •
-
--verbose⟨#opt-verbose⟩ /-v
-
Increase the logging verbosity level.
Miscellaneous global options
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--help⟨#opt-help⟩
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Show usage information.
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--offline⟨#opt-offline⟩
-
Disable substituters and consider all previously downloaded files up-to-date.
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--option⟨#opt-option⟩ name value
-
Set the Nix configuration setting name to value (overriding
nix.conf).
- •
-
--refresh⟨#opt-refresh⟩
-
Consider all previously downloaded files out-of-date.
- •
-
--version⟨#opt-version⟩
-
Show version information.
Note
See
man nix.conf⟨@docroot@/command-ref/conf-file.md#command-line-flags⟩ for overriding configuration settings with command line flags.