text: const fs = require('fs');
  const param = require("commander");
  
  const lists = {
      netlify: {
          filename: '_redirects',
          data: '/* /index.html 200'
      }
  }
  
  param.parse(process.argv);
  provider_name = param.args[0];
  const setting = lists[provider_name];
  
  if (!setting) {
      console.error("Please pass argument.");
      process.exit(1);
  }
  
  fs.writeFile('public/' + setting.filename, setting.data, function (err) {
      if (err) { throw err; }
      console.log('Success');
  });
  
  