Node.js install version 4.x and 5.x

Node.js download Link : https://nodejs.org/en/download/package-manager/

Using package manager (My case is Ubuntu, apt-get)

Nodejs.org site page below.

Debian and Ubuntu based Linux distributions

Also including: 

Linux Mint, Linux Mint Debian Edition (LMDE), elementaryOS and others.

Node.js is available from the NodeSource Debian and Ubuntu binary distributions repository (formerly Chris Lea'sLaunchpad PPA). 

Support for this repository, along with its scripts, can be found on GitHub at nodesource/distributions.

NOTE: If you are using Ubuntu Precise or Debian Wheezy, you might want to read about

running Node.js >= 4.x on older distros.

curl -sL https://deb.nodesource.com/setup_4.x | sudo -E bash -
sudo apt-get install -y nodejs

Alternatively, for Node.js v5:

curl -sL https://deb.nodesource.com/setup_5.x | sudo -E bash -
sudo apt-get install -y nodejs

Optional: install build tools

To compile and install native addons from npm you may also need to install build tools:

sudo apt-get install -y build-essential

Node.js v5.0 install on ubuntu

If you want to install Node.js version 5.0

using NVM
GitHub : https://github.com/creationix/nvm

1. install script (file : nvm.sh)

- using curl

$curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.30.1/install.sh | bash

- using wget

$wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.30.1/install.sh | bash

2. manual install

$git clone https://github.com/creationix/nvm.git ~/.nvm && cd ~/.nvm && git checkout `git describe --abbrev=0 --tags`

# If console shows no command 'nvm' found,
add to ~/.bashrc OR ~/.profile OR ~/.zshrc append this code.

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm

3. install Node.js

$nvm install 5.0

4. use Node.js - use 5.0 version

$nvm use 5.0

And now just use it, Node.js v5.0

Node.js & express install on BBB(Beagle Bone Black)

Install Nodejs & expressjs ON Beagle Bone Black

Ref video : http://www.youtube.com/watch?v=tbgBN2y5_wI - 2012
in my case, just $apt-get install nodejs

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

Ref : https://github.com/joyent/node/wiki/Installing-Node.js-via-package-manager#ubuntu-mint-elementary-os


Just my install case,


$apt-get install nodejs
$apt-get install npm
$npm install express -g

and i will make express project, but error..

-bash: express: command not found


??????????????????????????????????????????????????

so, i found that,
http://stackoverflow.com/questions/23002448/express-command-not-found
sudo npm install -g express-generator

success!

and 

$cd node_m && npm install

End!