Get argv input

argv.js

var argv = process.argv
  , slice = Array.prototype.slice

function getArg() {
  var args = slice.call(arguments)
  
  for (var i = 0; i < args.length; i++) {
    var name = args[i]
      , idx = argv.indexOf(name)
    
    if (~idx) {
      if (argv[idx + 1]) return argv[idx + 1]
      return true
    }
  }
  return false
}