Install node.js version 6.x Ubuntu 16.04

ubuntu-install-nodejs-npm.sh

curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -

echo "Installing NodeJS 6.x"
sudo apt-get install nodejs

echo "Install webpack globally"
sudo npm install webpack -g

echo "Install nightwatch globally"
sudo npm install nightwatch -g

sudo npm install -g brunch

echo "Install Selenium standalone globally"
sudo npm install selenium-standalone@latest -g
sudo selenium-standalone install

echo "Installing Yarn"
curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
sudo apt-get update && sudo apt-get install yarn -y --allow-unauthenticated

echo "Installing driver"
#sudo selenium-standalone install --drivers.chrome.version=2.29 --drivers.chrome.baseURL=https://chromedriver.storage.googleapis.com

#selenium-standalone start

is there error on 10 line?
9 echo "Install nightwatch globally"
10 sudo npm install webpack -g
should be
10 sudo npm install nightwatch -g

@elizhenin Thanks! :)