Provided by: nodejs_8.10.0~dfsg-2ubuntu0.4_amd64 
NAME
nodejs - Server-side JavaScript runtime
SYNOPSIS
nodejs [options] [v8 options] [script.js | -e "script" | - ] [--] [arguments]
node debug [script.js | -e "script" | <host>:<port>] ...
node [--v8-options]
Execute without arguments to start the REPL.
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.
OPTIONS
-v, --version
Print node's version.
-h, --help
Print node command line options. The output of this option is less detailed than this document.
-e, --eval "script"
Evaluate the following argument as JavaScript.
-p, --print "script"
Identical to -e but prints the result.
-c, --check
Syntax check the script without executing.
-i, --interactive
Open the REPL even if stdin does not appear to be a terminal.
-r, --require module
Preload the specified module at startup. Follows `require()`'s module resolution rules. module may
be either a path to a file, or a node module name.
--inspect[=[host:]port]
Activate inspector on host:port. Default is 127.0.0.1:9229.
V8 Inspector integration allows attaching Chrome DevTools and IDEs to Node.js instances for
debugging and profiling. It uses the Chrome Debugging Protocol.
--inspect-brk[=[host:]port]
Activate inspector on host:port and break at start of user script.
--inspect-port=[host:]port
Set the host:port to be used when the inspector is activated.
--no-deprecation
Silence deprecation warnings.
--trace-deprecation
Print stack traces for deprecations.
--throw-deprecation
Throw errors for deprecations.
--pending-deprecation
Emit pending deprecation warnings.
--no-warnings
Silence all process warnings (including deprecations).
--napi-modules
Enable loading native modules compiled with the ABI-stable Node.js API (N-API) (experimental).
--abort-on-uncaught-exception
Aborting instead of exiting causes a core file to be generated for analysis.
--trace-warnings
Print stack traces for process warnings (including deprecations).
--redirect-warnings=file
Write process warnings to the given file instead of printing to stderr.
--trace-sync-io
Print a stack trace whenever synchronous I/O is detected after the first turn of the event loop.
--force-async-hooks-checks
Enables runtime checks for `async_hooks`. These can also be enabled dynamically by enabling one of
the `async_hooks` hooks.
--trace-events-enabled
Enables the collection of trace event tracing information.
--trace-event-categories categories
A comma separated list of categories that should be traced when trace event tracing is enabled
using --trace-events-enabled.
--zero-fill-buffers
Automatically zero-fills all newly allocated Buffer and SlowBuffer instances.
--preserve-symlinks
Instructs the module loader to preserve symbolic links when resolving and caching modules.
--track-heap-objects
Track heap object allocations for heap snapshots.
--prof-process
Process V8 profiler output generated using the V8 option --prof
--v8-options
Print V8 command line options.
Note: V8 options allow words to be separated by both dashes (-) or underscores (_).
For example, --stack-trace-limit is equivalent to --stack_trace_limit
--v8-pool-size=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 max then the largest value will be chosen.
--tls-cipher-list=list
Specify an alternative default TLS cipher list. (Requires Node.js to be built with crypto support.
(Default))
--enable-fips
Enable FIPS-compliant crypto at startup. (Requires Node.js to be built with ./configure
--openssl-fips)
--force-fips
Force FIPS-compliant crypto on startup. (Cannot be disabled from script code.) (Same requirements
as --enable-fips)
--openssl-config=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 ./configure --openssl-fips.
--use-openssl-ca,--use-bundled-ca
Use OpenSSL's default CA store or use bundled Mozilla CA store as supplied by current Node.js
version. The default store is selectable at build-time.
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.
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.
See SSL_CERT_DIR and SSL_CERT_FILE.
--icu-data-dir=file
Specify ICU data load path. (overrides NODE_ICU_DATA)
- Alias for stdin, analogous to the use of - in other command line utilities, meaning that the
script will be read from stdin, and the rest of the options are passed to that script.
-- Indicate the end of node options. Pass the rest of the arguments to the script.
If no script filename or eval/print script is supplied prior to this, then the next argument will
be used as a script filename.
ENVIRONMENT VARIABLES
NODE_DEBUG=module[,...]
´,´-separated list of core modules that should print debug information.
NODE_DISABLE_COLORS=1
When set to 1, colors will not be used in the REPL.
NODE_EXTRA_CA_CERTS=file
When set, the well known "root" CAs (like VeriSign) will be extended with the extra certificates
in file. The file should consist of one or more trusted certificates in PEM format. A message will
be emitted (once) with process.emitWarning() if the file is missing or misformatted, but any
errors are otherwise ignored.
NODE_ICU_DATA=file
Data path for ICU (Intl object) data. Will extend linked-in data when compiled with small-icu
support.
NODE_NO_WARNINGS=1
When set to 1, process warnings are silenced.
NODE_NO_HTTP2=1
When set to 1, the http2 module is suppressed.
NODE_OPTIONS=options...
A space-separated list of command line options. options... are interpreted as if they had been
specified on the command line before the actual command line (so they can be overridden). Node
will exit with an error if an option that is not allowed in the environment is used, such as -p or
a script file.
NODE_PATH=path[:...]
´:´-separated list of directories prefixed to the module search path.
NODE_PENDING_DEPRECATION=1
When set to 1, emit pending deprecation warnings.
NODE_REPL_HISTORY=file
Path to the file used to store the persistent REPL history. The default path is
~/.node_repl_history, which is overridden by this variable. Setting the value to an empty string
("" or " ") disables persistent REPL history.
OPENSSL_CONF=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 ./configure --openssl-fips.
If the --openssl-config command line option is used, the environment variable is ignored.
SSL_CERT_DIR=dir
If --use-openssl-ca is enabled, this overrides and sets OpenSSL's directory containing trusted
certificates.
SSL_CERT_FILE=file
If --use-openssl-ca is enabled, this overrides and sets OpenSSL's file containing trusted
certificates.
NODE_REDIRECT_WARNINGS=file
Write process warnings to the given file instead of printing to stderr. (equivalent to using the
--redirect-warnings=file command-line argument).
BUGS
Bugs are tracked in GitHub Issues: https://github.com/nodejs/node/issues
AUTHORS
Written and maintained by 1000+ contributors: https://github.com/nodejs/node/blob/master/AUTHORS
COPYRIGHT
Copyright Node.js contributors. Node.js is available under the MIT license.
Node.js also includes external libraries that are available under a variety of licenses. See
https://github.com/nodejs/node/blob/master/LICENSE for the full license text.
RESOURCES AND DOCUMENTATION
Website: https://nodejs.org/
Documentation: https://nodejs.org/api/
GitHub repository & Issue Tracker: https://github.com/nodejs/node
Mailing list: http://groups.google.com/group/nodejs
IRC (general questions): chat.freenode.net #node.js (unofficial)
IRC (Node.js core development): chat.freenode.net #node-dev