text: "use strict";
  
  const fs = require('fs');
  
  let inputFile = '';
  let outputFile = 'output.json';
  
  if (process.argv[2]) {
    inputFile = process.argv[2];
    if (process.argv[3]) {
      outputFile = process.argv[3];
    } 
  } else {
    console.log('Please specify an input file.');
    process.exit();
  }
  
  fs.readFile(inputFile, (err, data) => {
    let json = JSON.parse(data);
    let features = json.features;
    features.forEach(feature => {
      delete feature.properties.description;
    });
    fs.writeFile(outputFile, JSON.stringify(json));
  });
  