It is straight forward however, so here's the steps..
sudo apt-get update
sudo apt-get install git-core curl build-essential openssl libssl-dev
git clone https://github.com/joyent/node.git
cd node
./configure
make
(This will take a while!)
sudo make install
node -v (test it works)
Now Download NPM, which we'll use to install LESS
curl https://www.npmjs.com/install.sh | sudo sh
npm -v
npm install less
echo "PATH=$PATH:$HOME/node/node_modules/less/bin" >>
~/.bashrc
source ~/.bashrc
You should now be able to invoke LESS from the terminal window like so:lessc LESSFILE.less > CSSFILE.css