old_contents: #!/usr/bin/env node
  'use strict';
  
  var input = process.argv.slice(2);
  var pkg = require('./package.json');
  var stdin = require('get-stdin');
  var viewport = require('./');
  
  /**
   * Help screen
   */
  
  function help() {
      console.log(pkg.description);
      console.log('');
      console.log('Usage');
      console.log('  $ viewport [device]');
      console.log('  $ cat <file> | viewport [device]');
      console.log('');
      console.log('Example');
      console.log('  $ viewport');
      console.log('  $ viewport iphone4 iphone5');
      console.log('  $ cat devices.txt | viewport');
  }
  
  /**
   * Show help
   */
  
  if (input.indexOf('-h') !== -1 || input.indexOf('--help') !== -1) {
      help();
      return;
  }
  
  /**
   * Show package version
   */
  
  if (input.indexOf('-v') !== -1 || input.indexOf('--version') !== -1) {
      console.log(pkg.version);
      return;
  }
  
  /**
   * Run
   */
  
  function run(input) {
      viewport(input, function (err, devices) {
          if (err) {
              throw err;
          }
  
          console.log(devices);
      });
  }
  
  /**
   * Apply arguments
   */
  
  if (process.stdin.isTTY) {
      run(input);
  } else {
      stdin(function (data) {
          [].push.apply(input, data.trim().split('\n'));
          run(input);
      });
  }
  
new_contents: #!/usr/bin/env node
  'use strict';
  
  var csv = require('to-csv');
  var input = process.argv.slice(2);
  var pkg = require('./package.json');
  var stdin = require('get-stdin');
  var viewport = require('./');
  
  /**
   * Help screen
   */
  
  function help() {
      console.log(pkg.description);
      console.log('');
      console.log('Usage');
      console.log('  $ viewport [device]');
      console.log('  $ cat <file> | viewport [device]');
      console.log('');
      console.log('Example');
      console.log('  $ viewport');
      console.log('  $ viewport iphone4 iphone5');
      console.log('  $ cat devices.txt | viewport');
  }
  
  /**
   * Show help
   */
  
  if (input.indexOf('-h') !== -1 || input.indexOf('--help') !== -1) {
      help();
      return;
  }
  
  /**
   * Show package version
   */
  
  if (input.indexOf('-v') !== -1 || input.indexOf('--version') !== -1) {
      console.log(pkg.version);
      return;
  }
  
  /**
   * Run
   */
  
  function run(input) {
      viewport(input, function (err, devices) {
          if (err) {
              throw err;
          }
  
          console.log(csv(devices));
      });
  }
  
  /**
   * Apply arguments
   */
  
  if (process.stdin.isTTY) {
      run(input);
  } else {
      stdin(function (data) {
          [].push.apply(input, data.trim().split('\n'));
          run(input);
      });
  }
  
subject: Convert CLI output to `.csv`