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Execute A Unix Command With Node.js

· Web Dev Zone

Make the transition to Node.js if you are a Java, PHP, Rails or .NET developer with these resources to help jumpstart your Node.js knowledge plus pick up some development tips.  Brought to you in partnership with IBM.

Ever wanted to use JavaScript to execute commands in good ol' Unix?  Now you can.  There's a fuller snippet and a more concise method.

// http://nodejs.org/api.html#_child_processes
var sys = require('sys')
var exec = require('child_process').exec;
var child;

// executes `pwd`
child = exec("pwd", function (error, stdout, stderr) {
  sys.print('stdout: ' + stdout);
  sys.print('stderr: ' + stderr);
  if (error !== null) {
    console.log('exec error: ' + error);

// or more concisely
var sys = require('sys')
var exec = require('child_process').exec;
function puts(error, stdout, stderr) { sys.puts(stdout) }
exec("ls -la", puts);

Learn why developers are gravitating towards Node and its ability to retain and leverage the skills of JavaScript developers and the ability to deliver projects faster than other languages can.  Brought to you in partnership with IBM.


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