exec-back

Execute commands and receive the output via callback. It uses cross-spawn-async behind the scenes to keep things safe and cross-platform.

Install

$ npm install exec-back

Usage

var exec = require('exec-back')
 
exec('ls', { cwd: '../' }, function (err, stdout, stderr) {
  console.log(stdout)
  > 'the files in ../'
})

cmd is the only required argument and all can be specified in any order. opts will be directly passed through to cross-spawn-async.

Rather than providing them with every exec call, you can bind the opts object at the outset:

var exec = require('exec-back')
var bound = exec({ cwd: '../' })
 
bound('ls', function (err, stdout, stderr) {
  console.log(stdout)
  > 'the files in ../'
})

Errors

The err parameter will always be null unless the process returned an non-zero exit code. The buffered output of of stdout and stderr will always be provided, regardless of erroneous exit codes.

License

MIT