old_contents: 'use strict';
  const download = require('download');
  const nodeNightlyVersion = require('node-nightly-version');
  const Configstore = require('configstore');
  const pkg = require('./package.json');
  const mv = require('fs').rename;
  const rm = require('rimraf');
  
  module.exports = {
    install: () => {
         nodeNightlyVersion().then(latest => {
          const conf = new Configstore(pkg.name);
          conf.set('version', latest);
          const os = process.platform;
          const arch = process.arch;
          const type = 'nightly';
          const url = `https://nodejs.org/download/${type}/${latest}/node-${latest}-${os}-${arch}.tar`
          download(url, __dirname, {extract:true})
          .then( _ => {
            mv(`${__dirname}/node-${latest}-${os}-${arch}`, `${__dirname}/node-nightly`);
            console.log('node-nightly is avalible on your CLI! ');
            process.exit(0);
          }).catch(err => console.error(err));
        }).catch(err => console.error(err))
    },
    update: function() {
       console.log('Deleting old version');
       rm.sync('./node-nightly');
       console.log('Deleted, installing newer version..');
       this.install();
    }
  };
  
new_contents: 'use strict';
  const download = require('download');
  const nodeNightlyVersion = require('node-nightly-version');
  const Configstore = require('configstore');
  const pkg = require('./package.json');
  const mv = require('fs').rename;
  const rm = require('rimraf');
  
  module.exports = {
    install: () => {
         nodeNightlyVersion().then(latest => {
          const conf = new Configstore(pkg.name);
          conf.set('version', latest);
          const os = process.platform;
          const arch = process.arch;
          const type = 'nightly';
          const url = `https://nodejs.org/download/${type}/${latest}/node-${latest}-${os}-${arch}.tar`
          download(url, __dirname, {extract:true})
          .then( _ => {
            mv(`${__dirname}/node-${latest}-${os}-${arch}`, `${__dirname}/node-nightly`);
            console.log('node-nightly is available on your CLI! ');
            process.exit(0);
          }).catch(err => console.error(err));
        }).catch(err => console.error(err))
    },
    update: function() {
       console.log('Deleting old version');
       rm.sync('./node-nightly');
       console.log('Deleted, installing newer version..');
       this.install();
    }
  };
  
subject: fix spelling typo