nix3-show-config(1)

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

Name
nix show-config - show the Nix configuration

Synopsis
nix show-config [option…]

Options

•   --json

    Produce output in JSON format, suitable for consumption by another program.

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    Consider all previously downloaded files out-of-date.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

•   --accept-flake-config

    Enable the accept-flake-config setting.

•   --access-tokens value

    Set the access-tokens setting.

•   --allow-dirty

    Enable the allow-dirty setting.

•   --allow-import-from-derivation

    Enable the allow-import-from-derivation setting.

•   --allow-new-privileges

    Enable the allow-new-privileges setting.

•   --allow-symlinked-store

    Enable the allow-symlinked-store setting.

•   --allow-unsafe-native-code-during-evaluation

    Enable the allow-unsafe-native-code-during-evaluation setting.

•   --allowed-impure-host-deps value

    Set the allowed-impure-host-deps setting.

•   --allowed-uris value

    Set the allowed-uris setting.

•   --allowed-users value

    Set the allowed-users setting.

•   --auto-allocate-uids

    Enable the auto-allocate-uids setting.

•   --auto-optimise-store

    Enable the auto-optimise-store setting.

•   --bash-prompt value

    Set the bash-prompt setting.

•   --bash-prompt-prefix value

    Set the bash-prompt-prefix setting.

•   --bash-prompt-suffix value

    Set the bash-prompt-suffix setting.

•   --build-hook value

    Set the build-hook setting.

•   --build-poll-interval value

    Set the build-poll-interval setting.

•   --build-users-group value

    Set the build-users-group setting.

•   --builders value

    Set the builders setting.

•   --builders-use-substitutes

    Enable the builders-use-substitutes setting.

•   --commit-lockfile-summary value

    Set the commit-lockfile-summary setting.

•   --compress-build-log

    Enable the compress-build-log setting.

•   --connect-timeout value

    Set the connect-timeout setting.

•   --cores value

    Set the cores setting.

•   --diff-hook value

    Set the diff-hook setting.

•   --download-attempts value

    Set the download-attempts setting.

•   --download-speed value

    Set the download-speed setting.

•   --enforce-determinism

    Enable the enforce-determinism setting.

•   --eval-cache

    Enable the eval-cache setting.

•   --experimental-features value

    Set the experimental-features setting.

•   --extra-access-tokens value

    Append to the access-tokens setting.

•   --extra-allowed-impure-host-deps value

    Append to the allowed-impure-host-deps setting.

•   --extra-allowed-uris value

    Append to the allowed-uris setting.

•   --extra-allowed-users value

    Append to the allowed-users setting.

•   --extra-experimental-features value

    Append to the experimental-features setting.

•   --extra-extra-platforms value

    Append to the extra-platforms setting.

•   --extra-hashed-mirrors value

    Append to the hashed-mirrors setting.

•   --extra-ignored-acls value

    Append to the ignored-acls setting.

•   --extra-nix-path value

    Append to the nix-path setting.

•   --extra-platforms value

    Set the extra-platforms setting.

•   --extra-plugin-files value

    Append to the plugin-files setting.

•   --extra-sandbox-paths value

    Append to the sandbox-paths setting.

•   --extra-secret-key-files value

    Append to the secret-key-files setting.

•   --extra-substituters value

    Append to the substituters setting.

•   --extra-system-features value

    Append to the system-features setting.

•   --extra-trusted-public-keys value

    Append to the trusted-public-keys setting.

•   --extra-trusted-substituters value

    Append to the trusted-substituters setting.

•   --extra-trusted-users value

    Append to the trusted-users setting.

•   --fallback

    Enable the fallback setting.

•   --filter-syscalls

    Enable the filter-syscalls setting.

•   --flake-registry value

    Set the flake-registry setting.

•   --fsync-metadata

    Enable the fsync-metadata setting.

•   --gc-reserved-space value

    Set the gc-reserved-space setting.

•   --hashed-mirrors value

    Set the hashed-mirrors setting.

•   --http-connections value

    Set the http-connections setting.

•   --http2

    Enable the http2 setting.

•   --id-count value

    Set the id-count setting.

•   --ignore-try

    Enable the ignore-try setting.

•   --ignored-acls value

    Set the ignored-acls setting.

•   --impersonate-linux-26

    Enable the impersonate-linux-26 setting.

•   --keep-build-log

    Enable the keep-build-log setting.

•   --keep-derivations

    Enable the keep-derivations setting.

•   --keep-env-derivations

    Enable the keep-env-derivations setting.

•   --keep-failed

    Enable the keep-failed setting.

•   --keep-going

    Enable the keep-going setting.

•   --keep-outputs

    Enable the keep-outputs setting.

•   --log-lines value

    Set the log-lines setting.

•   --max-build-log-size value

    Set the max-build-log-size setting.

•   --max-free value

    Set the max-free setting.

•   --max-jobs value

    Set the max-jobs setting.

•   --max-silent-time value

    Set the max-silent-time setting.

•   --min-free value

    Set the min-free setting.

•   --min-free-check-interval value

    Set the min-free-check-interval setting.

•   --nar-buffer-size value

    Set the nar-buffer-size setting.

•   --narinfo-cache-negative-ttl value

    Set the narinfo-cache-negative-ttl setting.

•   --narinfo-cache-positive-ttl value

    Set the narinfo-cache-positive-ttl setting.

•   --netrc-file value

    Set the netrc-file setting.

•   --nix-path value

    Set the nix-path setting.

•   --no-accept-flake-config

    Disable the accept-flake-config setting.

•   --no-allow-dirty

    Disable the allow-dirty setting.

•   --no-allow-import-from-derivation

    Disable the allow-import-from-derivation setting.

•   --no-allow-new-privileges

    Disable the allow-new-privileges setting.

•   --no-allow-symlinked-store

    Disable the allow-symlinked-store setting.

•   --no-allow-unsafe-native-code-during-evaluation

    Disable the allow-unsafe-native-code-during-evaluation setting.

•   --no-auto-allocate-uids

    Disable the auto-allocate-uids setting.

•   --no-auto-optimise-store

    Disable the auto-optimise-store setting.

•   --no-builders-use-substitutes

    Disable the builders-use-substitutes setting.

•   --no-compress-build-log

    Disable the compress-build-log setting.

•   --no-enforce-determinism

    Disable the enforce-determinism setting.

•   --no-eval-cache

    Disable the eval-cache setting.

•   --no-fallback

    Disable the fallback setting.

•   --no-filter-syscalls

    Disable the filter-syscalls setting.

•   --no-fsync-metadata

    Disable the fsync-metadata setting.

•   --no-http2

    Disable the http2 setting.

•   --no-ignore-try

    Disable the ignore-try setting.

•   --no-impersonate-linux-26

    Disable the impersonate-linux-26 setting.

•   --no-keep-build-log

    Disable the keep-build-log setting.

•   --no-keep-derivations

    Disable the keep-derivations setting.

•   --no-keep-env-derivations

    Disable the keep-env-derivations setting.

•   --no-keep-failed

    Disable the keep-failed setting.

•   --no-keep-going

    Disable the keep-going setting.

•   --no-keep-outputs

    Disable the keep-outputs setting.

•   --no-preallocate-contents

    Disable the preallocate-contents setting.

•   --no-print-missing

    Disable the print-missing setting.

•   --no-pure-eval

    Disable the pure-eval setting.

•   --no-require-sigs

    Disable the require-sigs setting.

•   --no-restrict-eval

    Disable the restrict-eval setting.

•   --no-run-diff-hook

    Disable the run-diff-hook setting.

•   --no-sandbox

    Disable sandboxing.

•   --no-sandbox-fallback

    Disable the sandbox-fallback setting.

•   --no-show-trace

    Disable the show-trace setting.

•   --no-substitute

    Disable the substitute setting.

•   --no-sync-before-registering

    Disable the sync-before-registering setting.

•   --no-trace-function-calls

    Disable the trace-function-calls setting.

•   --no-trace-verbose

    Disable the trace-verbose setting.

•   --no-use-case-hack

    Disable the use-case-hack setting.

•   --no-use-cgroups

    Disable the use-cgroups setting.

•   --no-use-registries

    Disable the use-registries setting.

•   --no-use-sqlite-wal

    Disable the use-sqlite-wal setting.

•   --no-warn-dirty

    Disable the warn-dirty setting.

•   --plugin-files value

    Set the plugin-files setting.

•   --post-build-hook value

    Set the post-build-hook setting.

•   --pre-build-hook value

    Set the pre-build-hook setting.

•   --preallocate-contents

    Enable the preallocate-contents setting.

•   --print-missing

    Enable the print-missing setting.

•   --pure-eval

    Enable the pure-eval setting.

•   --relaxed-sandbox

    Enable sandboxing, but allow builds to disable it.

•   --repeat value

    Set the repeat setting.

•   --require-sigs

    Enable the require-sigs setting.

•   --restrict-eval

    Enable the restrict-eval setting.

•   --run-diff-hook

    Enable the run-diff-hook setting.

•   --sandbox

    Enable sandboxing.

•   --sandbox-build-dir value

    Set the sandbox-build-dir setting.

•   --sandbox-dev-shm-size value

    Set the sandbox-dev-shm-size setting.

•   --sandbox-fallback

    Enable the sandbox-fallback setting.

•   --sandbox-paths value

    Set the sandbox-paths setting.

•   --secret-key-files value

    Set the secret-key-files setting.

•   --show-trace

    Enable the show-trace setting.

•   --stalled-download-timeout value

    Set the stalled-download-timeout setting.

•   --start-id value

    Set the start-id setting.

•   --store value

    Set the store setting.

•   --substitute

    Enable the substitute setting.

•   --substituters value

    Set the substituters setting.

•   --sync-before-registering

    Enable the sync-before-registering setting.

•   --system value

    Set the system setting.

•   --system-features value

    Set the system-features setting.

•   --tarball-ttl value

    Set the tarball-ttl setting.

•   --timeout value

    Set the timeout setting.

•   --trace-function-calls

    Enable the trace-function-calls setting.

•   --trace-verbose

    Enable the trace-verbose setting.

•   --trusted-public-keys value

    Set the trusted-public-keys setting.

•   --trusted-substituters value

    Set the trusted-substituters setting.

•   --trusted-users value

    Set the trusted-users setting.

•   --use-case-hack

    Enable the use-case-hack setting.

•   --use-cgroups

    Enable the use-cgroups setting.

•   --use-registries

    Enable the use-registries setting.

•   --use-sqlite-wal

    Enable the use-sqlite-wal setting.

•   --user-agent-suffix value

    Set the user-agent-suffix setting.

•   --warn-dirty

    Enable the warn-dirty setting.