README
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.