Install NodeJS on Ubuntu Server

#sudo apt-get install python-software-properties python g++ make
#sudo add-apt-repository ppa:chris-lea/node.js
#sudo apt-get update
#sudo apt-get install nodejs
#apt-get install software-properties-common

//comment
//npm is automatically installed with node.js in the latest version of node.

#node --version
#npm --version

//will show the version,upgrade npm use the follow command.

#sudo npm install -g npm