Script position

main.js

var csv        = require('csv'), 
    fs         = require('fs');
                           
csv()                                
  .from.stream(fs.createReadStream(__dirname + "/scores.csv"))
  .to.path(__dirname + "/scores_with_position.csv")
  .transform(function (data, index) {
      data.push(index + 1);                                                                                                                                                                                                                                                       
      return data;            
  });