Installing nodejs and npm on linux
I wrote in the terminal the following command lines I hope it is useful for the community.
$ sudo apt install nodejs
$ curl -L https://npmjs.org/install.sh | sudo sh
good luck!
I really recommend you install node and npm using nvm. This is the fastest, cleanest and easiest way to do it.
That way, you install NVM simply doing:
curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.31.3/install.sh | bash
To test that nvm was properly installed, close and re-open Terminal and enter nvm. If you get a nvm: command not found message, your OS may not have the necessary .bash_profile file. In Terminal, enter touch ~/.bash_profile and run the above install script again.
And you are now able to install node typing:
nvm install <version>
For example
nvm install 4.2.1
if you just want to install the latest node version, you can just type
nvm install node
In order to access node and npm as sudo (in order to have <1024 ports) you should run
n=$(which node)
n=${n%/bin/node}
chmod -R 755 $n/bin/*
sudo cp -r $n/{bin,lib,share} /usr/local