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772b35bdc4
Co-Authored-By: Antoine du Hamel <duhamelantoine1995@gmail.com> PR-URL: https://github.com/nodejs/node/pull/54933 Refs: https://github.com/nodejs/node/pull/49975 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: LiviaMedeiros <livia@cirno.name> Reviewed-By: Stephen Belanger <admin@stephenbelanger.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
831 lines
25 KiB
Groff
831 lines
25 KiB
Groff
.\"
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.\" This manpage is written in mdoc(7).
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.\"
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.\" * Language reference:
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.\" https://man.openbsd.org/mdoc.7
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.\"
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.\" * Linting changes:
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.\" mandoc -Wall -Tlint /path/to/this.file # BSD
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.\" groff -w all -z /path/to/this.file # GNU/Linux, macOS
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.\"
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.\"
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.\" Before making changes, please note the following:
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.\"
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.\" * In Roff, each new sentence should begin on a new line. This gives
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.\" the Roff formatter better control over text-spacing, line-wrapping,
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.\" and paragraph justification.
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.\"
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.\" * Do not leave blank lines in the markup. If whitespace is desired
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.\" for readability, put a dot in the first column to indicate a null/empty
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.\" command. Comments and horizontal whitespace may optionally follow: each
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.\" of these lines are an example of a null command immediately followed by
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.\" a comment.
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.\"
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.\"======================================================================
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.
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.tr -\-^\(ha~\(ti`\(ga
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.Dd 2018
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.Dt NODE 1
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.
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.Sh NAME
|
|
.Nm node
|
|
.Nd server-side JavaScript runtime
|
|
.
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.\"======================================================================
|
|
.Sh SYNOPSIS
|
|
.Nm node
|
|
.Op Ar options
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|
.Op Ar v8-options
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|
.Op Fl e Ar string | Ar script.js | Fl
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|
.Op Fl -
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|
.Op Ar arguments ...
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|
.
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|
.Nm node
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|
.Cm inspect
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|
.Op Fl e Ar string | Ar script.js | Fl | Ar <host>:<port>
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|
.Ar ...
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|
.
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|
.Nm node
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|
.Op Fl -v8-options
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|
.
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.\"======================================================================
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|
.Sh DESCRIPTION
|
|
Node.js is a set of libraries for JavaScript which allows it to be used outside of the browser.
|
|
It is primarily focused on creating simple, easy-to-build network clients and servers.
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|
.Pp
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|
Execute
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|
.Nm
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|
without arguments to start a REPL.
|
|
.
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|
.Sh OPTIONS
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|
.Bl -tag -width 6n
|
|
.It Sy -
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|
Alias for stdin, analogous to the use of - in other command-line utilities.
|
|
The executed script is read from stdin, and remaining arguments are passed to the script.
|
|
.
|
|
.It Fl -
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|
Indicate the end of command-line options.
|
|
Pass the rest of the arguments to the script.
|
|
.Pp
|
|
If no script filename or eval/print script is supplied prior to this, then
|
|
the next argument will be used as a script filename.
|
|
.
|
|
.It Fl -abort-on-uncaught-exception
|
|
Aborting instead of exiting causes a core file to be generated for analysis.
|
|
.
|
|
.It Fl -allow-fs-read
|
|
Allow file system read access when using the permission model.
|
|
.
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|
.It Fl -allow-fs-write
|
|
Allow file system write access when using the permission model.
|
|
.
|
|
.It Fl -allow-addons
|
|
Allow using native addons when using the permission model.
|
|
.
|
|
.It Fl -allow-child-process
|
|
Allow spawning process when using the permission model.
|
|
.
|
|
.It Fl -allow-wasi
|
|
Allow execution of WASI when using the permission model.
|
|
.
|
|
.It Fl -allow-worker
|
|
Allow creating worker threads when using the permission model.
|
|
.
|
|
.It Fl -completion-bash
|
|
Print source-able bash completion script for Node.js.
|
|
.
|
|
.It Fl C , Fl -conditions Ar string
|
|
Use custom conditional exports conditions.
|
|
.Ar string
|
|
.
|
|
.It Fl -cpu-prof
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|
Start the V8 CPU profiler on start up, and write the CPU profile to disk
|
|
before exit. If
|
|
.Fl -cpu-prof-dir
|
|
is not specified, the profile will be written to the current working directory
|
|
with a generated file name.
|
|
.
|
|
.It Fl -cpu-prof-dir
|
|
The directory where the CPU profiles generated by
|
|
.Fl -cpu-prof
|
|
will be placed.
|
|
The default value is controlled by the
|
|
.Fl -diagnostic-dir .
|
|
command-line option.
|
|
.
|
|
.It Fl -cpu-prof-interval
|
|
The sampling interval in microseconds for the CPU profiles generated by
|
|
.Fl -cpu-prof .
|
|
The default is
|
|
.Sy 1000 .
|
|
.
|
|
.It Fl -cpu-prof-name
|
|
File name of the V8 CPU profile generated with
|
|
.Fl -cpu-prof .
|
|
.
|
|
.It Fl -diagnostic-dir
|
|
Set the directory for all diagnostic output files.
|
|
Default is current working directory.
|
|
Set the directory to which all diagnostic output files will be written to.
|
|
Defaults to current working directory.
|
|
.
|
|
Affects the default output directory of:
|
|
.Fl -cpu-prof-dir .
|
|
.Fl -heap-prof-dir .
|
|
.Fl -redirect-warnings .
|
|
.
|
|
.It Fl -disable-proto Ns = Ns Ar mode
|
|
Disable the `Object.prototype.__proto__` property. If
|
|
.Ar mode
|
|
is `delete`, the property will be removed entirely. If
|
|
.Ar mode
|
|
is `throw`, accesses to the property will throw an exception with the code
|
|
`ERR_PROTO_ACCESS`.
|
|
.
|
|
.It Fl -disable-wasm-trap-handler Ns = Ns Ar mode
|
|
Disable trap-handler-based WebAssembly bound checks and fall back to
|
|
inline bound checks so that WebAssembly can be run with limited virtual
|
|
memory.
|
|
.
|
|
.It Fl -disallow-code-generation-from-strings
|
|
Make built-in language features like `eval` and `new Function` that generate
|
|
code from strings throw an exception instead. This does not affect the Node.js
|
|
`vm` module.
|
|
.
|
|
.It Fl -enable-fips
|
|
Enable FIPS-compliant crypto at startup.
|
|
Requires Node.js to be built with
|
|
.Sy ./configure --openssl-fips .
|
|
.
|
|
.It Fl -enable-source-maps
|
|
Enable Source Map V3 support for stack traces.
|
|
.
|
|
.It Fl -entry-url
|
|
Interpret the entry point as a URL.
|
|
.
|
|
.It Fl -experimental-default-type Ns = Ns Ar type
|
|
Interpret as either ES modules or CommonJS modules input via --eval or STDIN, when --input-type is unspecified;
|
|
.js or extensionless files with no sibling or parent package.json;
|
|
.js or extensionless files whose nearest parent package.json lacks a "type" field, unless under node_modules.
|
|
.
|
|
.It Fl -experimental-import-meta-resolve
|
|
Enable experimental ES modules support for import.meta.resolve().
|
|
.
|
|
.It Fl -experimental-loader Ns = Ns Ar module
|
|
Specify the
|
|
.Ar module
|
|
to use as a custom module loader.
|
|
.
|
|
.It Fl -experimental-permission
|
|
Enable the experimental permission model.
|
|
.
|
|
.It Fl -experimental-shadow-realm
|
|
Use this flag to enable ShadowRealm support.
|
|
.
|
|
.It Fl -experimental-sqlite
|
|
Enable the experimental node:sqlite module.
|
|
.
|
|
.It Fl -experimental-test-coverage
|
|
Enable code coverage in the test runner.
|
|
.
|
|
.It Fl -experimental-test-isolation Ns = Ns Ar mode
|
|
Configures the type of test isolation used in the test runner.
|
|
.
|
|
.It Fl -experimental-test-module-mocks
|
|
Enable module mocking in the test runner.
|
|
.
|
|
.It Fl -experimental-test-snapshots
|
|
Enable snapshot testing in the test runner.
|
|
.
|
|
.It Fl -experimental-strip-types
|
|
Enable experimental type-stripping for TypeScript files.
|
|
.
|
|
.It Fl -experimental-transform-types
|
|
Enable transformation of TypeScript-only syntax into JavaScript code.
|
|
.
|
|
.It Fl -experimental-eventsource
|
|
Enable experimental support for the EventSource Web API.
|
|
.
|
|
.It Fl -no-experimental-websocket
|
|
Disable experimental support for the WebSocket API.
|
|
.
|
|
.It Fl -experimental-webstorage
|
|
Enable experimental support for the Web Storage API.
|
|
.
|
|
.It Fl -no-experimental-repl-await
|
|
Disable top-level await keyword support in REPL.
|
|
.
|
|
.It Fl -experimental-vm-modules
|
|
Enable experimental ES module support in VM module.
|
|
.
|
|
.It Fl -experimental-wasi-unstable-preview1
|
|
Enable experimental WebAssembly System Interface support. This
|
|
flag is no longer required as WASI is enabled by default.
|
|
.
|
|
.It Fl -experimental-wasm-modules
|
|
Enable experimental WebAssembly module support.
|
|
.
|
|
.It Fl -force-context-aware
|
|
Disable loading native addons that are not context-aware.
|
|
.
|
|
.It Fl -force-fips
|
|
Force FIPS-compliant crypto on startup
|
|
(Cannot be disabled from script code).
|
|
Same requirements as
|
|
.Fl -enable-fips .
|
|
.
|
|
.It Fl -frozen-intrinsics
|
|
Enable experimental frozen intrinsics support.
|
|
.
|
|
.It Fl -heapsnapshot-near-heap-limit Ns = Ns Ar max_count
|
|
Generate heap snapshot when the V8 heap usage is approaching the heap limit.
|
|
No more than the specified number of snapshots will be generated.
|
|
.
|
|
.It Fl -heapsnapshot-signal Ns = Ns Ar signal
|
|
Generate heap snapshot on specified signal.
|
|
.
|
|
.It Fl -heap-prof
|
|
Start the V8 heap profiler on start up, and write the heap profile to disk
|
|
before exit. If
|
|
.Fl -heap-prof-dir
|
|
is not specified, the profile will be written to the current working directory
|
|
with a generated file name.
|
|
.
|
|
.It Fl -heap-prof-dir
|
|
The directory where the heap profiles generated by
|
|
.Fl -heap-prof
|
|
will be placed.
|
|
The default value is controlled by the
|
|
.Fl -diagnostic-dir .
|
|
command-line option.
|
|
.
|
|
.It Fl -heap-prof-interval
|
|
The average sampling interval in bytes for the heap profiles generated by
|
|
.Fl -heap-prof .
|
|
The default is
|
|
.Sy 512 * 1024 .
|
|
.
|
|
.It Fl -heap-prof-name
|
|
File name of the V8 heap profile generated with
|
|
.Fl -heap-prof .
|
|
.
|
|
.It Fl -icu-data-dir Ns = Ns Ar file
|
|
Specify ICU data load path.
|
|
Overrides
|
|
.Ev NODE_ICU_DATA .
|
|
.
|
|
.It Fl -input-type Ns = Ns Ar type
|
|
Set the module resolution type for input via --eval, --print or STDIN.
|
|
.
|
|
.It Fl -inspect-brk Ns = Ns Ar [host:]port
|
|
Activate inspector on
|
|
.Ar host:port
|
|
and break at start of user script.
|
|
.
|
|
.It Fl -inspect-port Ns = Ns Ar [host:]port
|
|
Set the
|
|
.Ar host:port
|
|
to be used when the inspector is activated.
|
|
.
|
|
.It Fl -inspect-publish-uid=stderr,http
|
|
Specify how the inspector WebSocket URL is exposed.
|
|
Valid values are
|
|
.Sy stderr
|
|
and
|
|
.Sy http .
|
|
Default is
|
|
.Sy stderr,http .
|
|
.
|
|
.It Fl -inspect-wait Ns = Ns Ar [host:]port
|
|
Activate inspector on
|
|
.Ar host:port
|
|
and wait for debugger to be attached.
|
|
.
|
|
.It Fl -inspect Ns = Ns Ar [host:]port
|
|
Activate inspector on
|
|
.Ar host:port .
|
|
Default is
|
|
.Sy 127.0.0.1:9229 .
|
|
.Pp
|
|
V8 Inspector integration allows attaching Chrome DevTools and IDEs to Node.js instances for debugging and profiling.
|
|
It uses the Chrome DevTools Protocol.
|
|
.
|
|
.It Fl -insecure-http-parser
|
|
Use an insecure HTTP parser that accepts invalid HTTP headers. This may allow
|
|
interoperability with non-conformant HTTP implementations. It may also allow
|
|
request smuggling and other HTTP attacks that rely on invalid headers being
|
|
accepted. Avoid using this option.
|
|
.
|
|
.It Fl -jitless
|
|
Disable runtime allocation of executable memory. This may be required on
|
|
some platforms for security reasons. It can also reduce attack surface on
|
|
other platforms, but the performance impact may be severe.
|
|
.
|
|
.Pp
|
|
This flag is inherited from V8 and is subject to change upstream. It may
|
|
disappear in a non-semver-major release.
|
|
.
|
|
.It Fl -localstorage-file Ns = Ns Ar file
|
|
The file used to store localStorage data.
|
|
.
|
|
.It Fl -max-http-header-size Ns = Ns Ar size
|
|
Specify the maximum size of HTTP headers in bytes. Defaults to 16 KiB.
|
|
.
|
|
.It Fl -napi-modules
|
|
This option is a no-op.
|
|
It is kept for compatibility.
|
|
.
|
|
.It Fl -no-deprecation
|
|
Silence deprecation warnings.
|
|
.
|
|
.It Fl -no-extra-info-on-fatal-exception
|
|
Hide extra information on fatal exception that causes exit.
|
|
.
|
|
.It Fl -no-force-async-hooks-checks
|
|
Disable runtime checks for `async_hooks`.
|
|
These will still be enabled dynamically when `async_hooks` is enabled.
|
|
.
|
|
.It Fl -no-addons
|
|
Disable the `node-addons` exports condition as well as disable loading native
|
|
addons. When `--no-addons` is specified, calling `process.dlopen` or requiring
|
|
a native C++ addon will fail and throw an exception.
|
|
.
|
|
.It Fl -no-global-search-paths
|
|
Do not search modules from global paths.
|
|
.
|
|
.It Fl -no-warnings
|
|
Silence all process warnings (including deprecations).
|
|
.
|
|
.It Fl -node-memory-debug
|
|
Enable extra debug checks for memory leaks in Node.js internals. This is
|
|
usually only useful for developers debugging Node.js itself.
|
|
.
|
|
.It Fl -openssl-config Ns = Ns Ar file
|
|
Load an OpenSSL configuration file on startup.
|
|
Among other uses, this can be used to enable FIPS-compliant crypto if Node.js is built with
|
|
.Sy ./configure --openssl-fips .
|
|
.
|
|
.It Fl -pending-deprecation
|
|
Emit pending deprecation warnings.
|
|
.
|
|
.It Fl -preserve-symlinks
|
|
Instructs the module loader to preserve symbolic links when resolving and caching modules other than the main module.
|
|
.
|
|
.It Fl -preserve-symlinks-main
|
|
Instructs the module loader to preserve symbolic links when resolving and caching the main module.
|
|
.
|
|
.It Fl -prof
|
|
Generate V8 profiler output.
|
|
.
|
|
.It Fl -prof-process
|
|
Process V8 profiler output generated using the V8 option
|
|
.Fl -prof .
|
|
.
|
|
.It Fl -redirect-warnings Ns = Ns Ar file
|
|
Write process warnings to the given
|
|
.Ar file
|
|
instead of printing to stderr.
|
|
.
|
|
.It Fl -report-compact
|
|
Write
|
|
.Sy diagnostic reports
|
|
in a compact format, single-line JSON.
|
|
.
|
|
.It Fl -report-dir Fl -report-directory
|
|
Location at which the
|
|
.Sy diagnostic report
|
|
will be generated.
|
|
The `file` name may be an absolute path. If it is not, the default directory it will
|
|
be written to is controlled by the
|
|
.Fl -diagnostic-dir .
|
|
command-line option.
|
|
.
|
|
.It Fl -report-filename
|
|
Name of the file to which the
|
|
.Sy diagnostic report
|
|
will be written.
|
|
.
|
|
.It Fl -report-on-fatalerror
|
|
Enables the
|
|
.Sy diagnostic report
|
|
to be triggered on fatal errors (internal errors within the Node.js runtime such
|
|
as out of memory) that leads to termination of the application. Useful to
|
|
inspect various diagnostic data elements such as heap, stack, event loop state,
|
|
resource consumption etc. to reason about the fatal error.
|
|
.
|
|
.It Fl -report-on-signal
|
|
Enables
|
|
.Sy diagnostic report
|
|
to be generated upon receiving the specified (or predefined) signal to the
|
|
running Node.js process. Default signal is SIGUSR2.
|
|
.
|
|
.It Fl -report-signal
|
|
Sets or resets the signal for
|
|
.Sy diagnostic report
|
|
generation (not supported on Windows). Default signal is SIGUSR2.
|
|
.
|
|
.It Fl -report-uncaught-exception
|
|
Enables
|
|
.Sy diagnostic report
|
|
to be generated on un-caught exceptions. Useful when inspecting JavaScript
|
|
stack in conjunction with native stack and other runtime environment data.
|
|
.
|
|
.It Fl -secure-heap Ns = Ns Ar n
|
|
Specify the size of the OpenSSL secure heap. Any value less than 2 disables
|
|
the secure heap. The default is 0. The value must be a power of two.
|
|
.
|
|
.It Fl -secure-heap-min Ns = Ns Ar n
|
|
Specify the minimum allocation from the OpenSSL secure heap. The default is 2. The value must be a power of two.
|
|
.
|
|
.It Fl -test
|
|
Starts the Node.js command line test runner.
|
|
.
|
|
.It Fl -test-concurrency
|
|
The maximum number of test files that the test runner CLI will execute
|
|
concurrently.
|
|
.
|
|
.It Fl -test-coverage-branches Ns = Ns Ar threshold
|
|
Require a minimum threshold for branch coverage (0 - 100).
|
|
.
|
|
.It Fl -test-coverage-exclude
|
|
A glob pattern that excludes matching files from the coverage report
|
|
.
|
|
.It Fl -test-coverage-functions Ns = Ns Ar threshold
|
|
Require a minimum threshold for function coverage (0 - 100).
|
|
.
|
|
.It Fl -test-coverage-include
|
|
A glob pattern that only includes matching files in the coverage report
|
|
.
|
|
.It Fl -test-coverage-lines Ns = Ns Ar threshold
|
|
Require a minimum threshold for line coverage (0 - 100).
|
|
.
|
|
.It Fl -test-force-exit
|
|
Configures the test runner to exit the process once all known tests have
|
|
finished executing even if the event loop would otherwise remain active.
|
|
.
|
|
.It Fl -test-name-pattern
|
|
A regular expression that configures the test runner to only execute tests
|
|
whose name matches the provided pattern.
|
|
.
|
|
.It Fl -test-reporter
|
|
A test reporter to use when running tests.
|
|
.
|
|
.It Fl -test-reporter-destination
|
|
The destination for the corresponding test reporter.
|
|
.
|
|
.It Fl -test-only
|
|
Configures the test runner to only execute top level tests that have the `only`
|
|
option set.
|
|
.
|
|
.It Fl -test-shard
|
|
Test suite shard to execute in a format of <index>/<total>.
|
|
.
|
|
.It Fl -test-skip-pattern
|
|
A regular expression that configures the test runner to skip tests
|
|
whose name matches the provided pattern.
|
|
.
|
|
.It Fl -test-timeout
|
|
A number of milliseconds the test execution will fail after.
|
|
.
|
|
.It Fl -test-update-snapshots
|
|
Regenerates the snapshot file used by the test runner for snapshot testing.
|
|
.
|
|
.It Fl -throw-deprecation
|
|
Throw errors for deprecations.
|
|
.
|
|
.It Fl -title Ns = Ns Ar title
|
|
Specify process.title on startup.
|
|
.
|
|
.It Fl -tls-cipher-list Ns = Ns Ar list
|
|
Specify an alternative default TLS cipher list.
|
|
Requires Node.js to be built with crypto support. (Default)
|
|
.
|
|
.It Fl -tls-keylog Ns = Ns Ar file
|
|
Log TLS key material to a file. The key material is in NSS SSLKEYLOGFILE
|
|
format and can be used by software (such as Wireshark) to decrypt the TLS
|
|
traffic.
|
|
.
|
|
.It Fl -tls-max-v1.2
|
|
Set default maxVersion to 'TLSv1.2'. Use to disable support for TLSv1.3.
|
|
.
|
|
.It Fl -tls-max-v1.3
|
|
Set default maxVersion to 'TLSv1.3'. Use to enable support for TLSv1.3.
|
|
.
|
|
.It Fl -tls-min-v1.0
|
|
Set default minVersion to 'TLSv1'. Use for compatibility with old TLS clients
|
|
or servers.
|
|
.
|
|
.It Fl -tls-min-v1.1
|
|
Set default minVersion to 'TLSv1.1'. Use for compatibility with old TLS clients
|
|
or servers.
|
|
.
|
|
.It Fl -tls-min-v1.2
|
|
Set default minVersion to 'TLSv1.2'. This is the default for 12.x and later,
|
|
but the option is supported for compatibility with older Node.js versions.
|
|
.
|
|
.It Fl -tls-min-v1.3
|
|
Set default minVersion to 'TLSv1.3'. Use to disable support for TLSv1.2 in
|
|
favour of TLSv1.3, which is more secure.
|
|
.
|
|
.It Fl -trace-deprecation
|
|
Print stack traces for deprecations.
|
|
.
|
|
.It Fl -trace-event-categories Ar categories
|
|
A comma-separated list of categories that should be traced when trace event tracing is enabled using
|
|
.Fl -trace-events-enabled .
|
|
.
|
|
.It Fl -trace-event-file-pattern Ar pattern
|
|
Template string specifying the filepath for the trace event data, it
|
|
supports
|
|
.Sy ${rotation}
|
|
and
|
|
.Sy ${pid} .
|
|
.
|
|
.It Fl -trace-events-enabled
|
|
Enable the collection of trace event tracing information.
|
|
.
|
|
.It Fl -trace-exit
|
|
Prints a stack trace whenever an environment is exited proactively,
|
|
i.e. invoking `process.exit()`.
|
|
.It Fl -trace-sigint
|
|
Prints a stack trace on SIGINT.
|
|
.
|
|
.It Fl -trace-sync-io
|
|
Print a stack trace whenever synchronous I/O is detected after the first turn of the event loop.
|
|
.
|
|
.It Fl -trace-tls
|
|
Prints TLS packet trace information to stderr.
|
|
.
|
|
.It Fl -trace-uncaught
|
|
Print stack traces for uncaught exceptions; usually, the stack trace associated
|
|
with the creation of an
|
|
.Sy Error
|
|
is printed, whereas this makes Node.js also
|
|
print the stack trace associated with throwing the value (which does not need
|
|
to be an
|
|
.Sy Error
|
|
instance).
|
|
.Pp
|
|
Enabling this option may affect garbage collection behavior negatively.
|
|
.
|
|
.It Fl -trace-warnings
|
|
Print stack traces for process warnings (including deprecations).
|
|
.
|
|
.It Fl -track-heap-objects
|
|
Track heap object allocations for heap snapshots.
|
|
.
|
|
.It Fl -unhandled-rejections=mode
|
|
Define the behavior for unhandled rejections. Can be one of `strict` (raise an error), `warn` (enforce warnings) or `none` (silence warnings).
|
|
.
|
|
.It Fl -use-bundled-ca , Fl -use-openssl-ca
|
|
Use bundled Mozilla CA store as supplied by current Node.js version or use OpenSSL's default CA store.
|
|
The default store is selectable at build-time.
|
|
.Pp
|
|
The bundled CA store, as supplied by Node.js, is a snapshot of Mozilla CA store that is fixed at release time.
|
|
It is identical on all supported platforms.
|
|
.Pp
|
|
Using OpenSSL store allows for external modifications of the store.
|
|
For most Linux and BSD distributions, this store is maintained by the distribution maintainers and system administrators.
|
|
OpenSSL CA store location is dependent on configuration of the OpenSSL library but this can be altered at runtime using environment variables.
|
|
.Pp
|
|
See
|
|
.Ev SSL_CERT_DIR
|
|
and
|
|
.Ev SSL_CERT_FILE .
|
|
.
|
|
.It Fl -use-largepages Ns = Ns Ar mode
|
|
Re-map the Node.js static code to large memory pages at startup. If supported on
|
|
the target system, this will cause the Node.js static code to be moved onto 2
|
|
MiB pages instead of 4 KiB pages.
|
|
.Pp
|
|
.Ar mode
|
|
must have one of the following values:
|
|
`off` (the default value, meaning do not map), `on` (map and ignore failure,
|
|
reporting it to stderr), or `silent` (map and silently ignore failure).
|
|
.
|
|
.It Fl -v8-options
|
|
Print V8 command-line options.
|
|
.
|
|
.It Fl -v8-pool-size Ns = Ns Ar num
|
|
Set V8's thread pool size which will be used to allocate background jobs.
|
|
If set to 0 then V8 will choose an appropriate size of the thread pool based on the number of online processors.
|
|
If the value provided is larger than V8's maximum, then the largest value will be chosen.
|
|
.
|
|
.It Fl -zero-fill-buffers
|
|
Automatically zero-fills all newly allocated Buffer and SlowBuffer instances.
|
|
.
|
|
.It Fl c , Fl -check
|
|
Check the script's syntax without executing it.
|
|
Exits with an error code if script is invalid.
|
|
.
|
|
.It Fl e , Fl -eval Ar string
|
|
Evaluate
|
|
.Ar string
|
|
as JavaScript.
|
|
.
|
|
.It Fl h , Fl -help
|
|
Print command-line options.
|
|
The output of this option is less detailed than this document.
|
|
.
|
|
.It Fl i , Fl -interactive
|
|
Open the REPL even if stdin does not appear to be a terminal.
|
|
.
|
|
.It Fl p , Fl -print Ar string
|
|
Identical to
|
|
.Fl e ,
|
|
but prints the result.
|
|
.
|
|
.It Fl r , Fl -require Ar module
|
|
Preload the specified
|
|
.Ar module
|
|
at startup.
|
|
Follows `require()`'s module resolution rules.
|
|
.Ar module
|
|
may be either a path to a file, or a Node.js module name.
|
|
.
|
|
.It Fl v , Fl -version
|
|
Print node's version.
|
|
.El
|
|
.
|
|
.\" =====================================================================
|
|
.Sh ENVIRONMENT
|
|
.Bl -tag -width 6n
|
|
.It Ev FORCE_COLOR
|
|
Used to enable ANSI colorized output. The value may be one of:
|
|
.Ar 1
|
|
,
|
|
.Ar true
|
|
, or
|
|
.Ar an empty string
|
|
to
|
|
indicate 16-color support,
|
|
.Ar 2
|
|
to indicate 256-color support, or
|
|
.Ar 3
|
|
to indicate 16 million-color support. When used and set to a supported
|
|
value, both the NO_COLOR and NODE_DISABLE_COLORS environment variables
|
|
are ignored. Any other value will result in colorized output being
|
|
disabled.
|
|
.
|
|
.It Ev NO_COLOR
|
|
Alias for NODE_DISABLE_COLORS
|
|
.
|
|
.It Ev NODE_DEBUG Ar modules...
|
|
Comma-separated list of core modules that should print debug information.
|
|
.
|
|
.It Ev NODE_DEBUG_NATIVE Ar modules...
|
|
Comma-separated list of C++ core modules that should print debug information.
|
|
.
|
|
.It Ev NODE_DISABLE_COLORS
|
|
When set to
|
|
.Ar 1 ,
|
|
colors will not be used in the REPL.
|
|
.
|
|
.It Ev NODE_EXTRA_CA_CERTS Ar file
|
|
When set, the well-known
|
|
.Dq root
|
|
CAs (like VeriSign) will be extended with the extra certificates in
|
|
.Ar file .
|
|
The file should consist of one or more trusted certificates in PEM format.
|
|
.Pp
|
|
If
|
|
.Ar file
|
|
is missing or misformatted, a message will be emitted once using
|
|
.Sy process.emitWarning() ,
|
|
but any errors are otherwise ignored.
|
|
.Pp
|
|
This environment variable is ignored when `node` runs as setuid root or
|
|
has Linux file capabilities set.
|
|
.Pp
|
|
The
|
|
.Ar NODE_EXTRA_CA_CERTS
|
|
environment variable is only read when the Node.js process is first launched.
|
|
Changing the value at runtime using
|
|
.Ar process.env.NODE_EXTRA_CA_CERTS
|
|
has no effect on the current process.
|
|
.
|
|
.It Ev NODE_ICU_DATA Ar file
|
|
Data path for ICU (Intl object) data.
|
|
Will extend linked-in data when compiled with small-icu support.
|
|
.
|
|
.It Ev NODE_NO_WARNINGS
|
|
When set to
|
|
.Ar 1 ,
|
|
process warnings are silenced.
|
|
.
|
|
.It Ev NODE_OPTIONS Ar options...
|
|
A space-separated list of command-line
|
|
.Ar options ,
|
|
which are interpreted as if they had been specified on the command line before the actual command (so they can be overridden).
|
|
Node.js will exit with an error if an option that is not allowed in the environment is used, such as
|
|
.Fl -print
|
|
or a script file.
|
|
.
|
|
.It Ev NODE_PATH Ar directories...
|
|
A colon-separated list of
|
|
.Ar directories
|
|
prefixed to the module search path.
|
|
.
|
|
.It Ev NODE_PENDING_DEPRECATION
|
|
When set to
|
|
.Ar 1 ,
|
|
emit pending deprecation warnings.
|
|
.
|
|
.It Ev NODE_PRESERVE_SYMLINKS
|
|
When set to
|
|
.Ar 1 ,
|
|
the module loader preserves symbolic links when resolving and caching modules.
|
|
.
|
|
.It Ev NODE_REDIRECT_WARNINGS Ar file
|
|
Write process warnings to the given
|
|
.Ar file
|
|
instead of printing to stderr.
|
|
Equivalent to passing
|
|
.Fl -redirect-warnings Ar file
|
|
on the command line.
|
|
.
|
|
.It Ev NODE_REPL_HISTORY Ar file
|
|
Path to the
|
|
.Ar file
|
|
used to store persistent REPL history.
|
|
The default path is
|
|
.Sy ~/.node_repl_history ,
|
|
which is overridden by this variable.
|
|
Setting the value to an empty string ("" or " ") will disable persistent REPL history.
|
|
.
|
|
.It Ev NODE_REPL_EXTERNAL_MODULE Ar file
|
|
Path to a Node.js module which will be loaded in place of the built-in REPL.
|
|
Overriding this value to an empty string (`''`) will use the built-in REPL.
|
|
.
|
|
.It Ev NODE_SKIP_PLATFORM_CHECK
|
|
When set to
|
|
.Ar 1 ,
|
|
the check for a supported platform is skipped during Node.js startup.
|
|
Node.js might not execute correctly.
|
|
Any issues encountered on unsupported platforms will not be fixed.
|
|
.
|
|
.It Ev NODE_TLS_REJECT_UNAUTHORIZED
|
|
When set to
|
|
.Ar 0 ,
|
|
TLS certificate validation is disabled.
|
|
.
|
|
.It Ev NODE_V8_COVERAGE Ar dir
|
|
When set, Node.js writes JavaScript code coverage information to
|
|
.Ar dir .
|
|
.
|
|
.It Ev OPENSSL_CONF Ar file
|
|
Load an OpenSSL configuration file on startup.
|
|
Among other uses, this can be used to enable FIPS-compliant crypto if Node.js is built with
|
|
.Sy ./configure --openssl-fips .
|
|
.Pp
|
|
If the
|
|
.Fl -openssl-config
|
|
command-line option is used, this environment variable is ignored.
|
|
.
|
|
.It Ev SSL_CERT_DIR Ar dir
|
|
If
|
|
.Fl -use-openssl-ca
|
|
is enabled, this overrides and sets OpenSSL's directory containing trusted certificates.
|
|
.
|
|
.It Ev SSL_CERT_FILE Ar file
|
|
If
|
|
.Fl -use-openssl-ca
|
|
is enabled, this overrides and sets OpenSSL's file containing trusted certificates.
|
|
.
|
|
.It Ev TZ
|
|
Specify the timezone configuration.
|
|
.
|
|
.It Ev UV_THREADPOOL_SIZE Ar size
|
|
Sets the number of threads used in libuv's threadpool to
|
|
.Ar size .
|
|
.
|
|
.El
|
|
.\"=====================================================================
|
|
.Sh BUGS
|
|
Bugs are tracked in GitHub Issues:
|
|
.Sy https://github.com/nodejs/node/issues
|
|
.
|
|
.\"======================================================================
|
|
.Sh COPYRIGHT
|
|
Copyright Node.js contributors.
|
|
Node.js is available under the MIT license.
|
|
.
|
|
.Pp
|
|
Node.js also includes external libraries that are available under a variety of licenses.
|
|
See
|
|
.Sy https://github.com/nodejs/node/blob/HEAD/LICENSE
|
|
for the full license text.
|
|
.
|
|
.\"======================================================================
|
|
.Sh SEE ALSO
|
|
Website:
|
|
.Sy https://nodejs.org/
|
|
.
|
|
.Pp
|
|
Documentation:
|
|
.Sy https://nodejs.org/api/
|
|
.
|
|
.Pp
|
|
GitHub repository and issue tracker:
|
|
.Sy https://github.com/nodejs/node
|