var fs = require('fs');

fs.readdir(process.argv[2], function (err, data) {
  if (err) {
    console.log('Error: ' + err)
  } else {
    for (var i in data) {
      if (process.argv[3] === data[i].substring(data[i].length - process.argv[3].length, data[i].length)) {
        console.log(data[i])
      } else if (process.argv[3] === undefined || process.argv[3] === '') {
        console.log(data[i])
      }
    }
  }
})