args.js

var args = process.argv.slice(2);


var exargs = {
               '-a' : function(val) {
                        if(!val) return;
                        console.log('Arg a does stuff with ' + val);
                }, 
               '-b' : function() {
                        console.log('arg b in da house');
               },
               '-c' : function() {
                        console.log('arg c represent');
                }
};


for (var arg in exargs) {
  var argindex = args.indexOf(arg);
  if(argindex != -1) { 
    exargs[arg](args[argindex+1]);
  }
}