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