Meet npm Pro: unlimited public & private packages + package-based permissions.Learn more »


5.1.1-fork • Public • Published


NPM version Downloads Build Status Build status Dependency status Dev Dependency status Greenkeeper badge

This is a proof-of-concept fork of cross-spawn while I wait for a fix to be merged upstream.

A cross platform solution to node's spawn and spawnSync.


$ npm install @cspotcode/cross-spawn

If you are using spawnSync on node 0.10 or older, you will also need to install spawn-sync:

$ npm install spawn-sync


Node has issues when using spawn on Windows:

  • It ignores PATHEXT
  • It does not support shebangs
  • No support on node <v4.8
  • It does not allow you to run del or dir

All these issues are handled correctly by cross-spawn. There are some known modules, such as win-spawn, that try to solve this but they are either broken or provide faulty escaping of shell arguments.


Exactly the same way as node's spawn or spawnSync, so it's a drop in replacement.

var spawn = require('@cspotcode/cross-spawn');
// Spawn NPM asynchronously
var child = spawn('npm', ['list', '-g', '-depth', '0'], { stdio: 'inherit' });
// Spawn NPM synchronously
var results = spawn.sync('npm', ['list', '-g', '-depth', '0'], { stdio: 'inherit' });

Caveats as an alternative to @cspotcode/cross-spawn

Starting from node v4.8, spawn has a shell option that allows you run commands from within a shell. This new option solves most of the problems that @cspotcode/cross-spawn attempts to solve, but:

  • It's not supported in node <v4.8
  • It has no support for shebangs on Windows
  • You must manually escape the command and arguments which is very error prone, specially when passing user input

If you are using the shell option to spawn a command in a cross platform way, consider using @cspotcode/cross-spawn instead. You have been warned.


While @cspotcode/cross-spawn handles shebangs on Windows, its support is limited: e.g.: it doesn't handle arguments after the path, e.g.: #!/bin/bash -e.

Remember to always test your code on Windows!


$ npm test


Released under the MIT License.


npm i @cspotcode/cross-spawn

DownloadsWeekly Downloads






Last publish


  • avatar