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Execute A Unix Command With Node.js

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Execute A Unix Command With Node.js

· Web Dev Zone ·
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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);

Deploying code to production can be filled with uncertainty. Reduce the risks, and deploy earlier and more often. Download this free guide to learn more. Brought to you in partnership with Rollbar.

Topics:
node.js

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