node.jsとcoffee-scriptインストール

Ubuntu coffee-script 
cd ~
git clone https://github.com/creationix/nvm.git ~/.nvm
. ~/.nvm/nvm.sh
nvm install v0.6.2
nvm alias default v0.6.2
[[ -s "$HOME/.nvm/nvm.sh" ]] && source "$HOME/.nvm/nvm.sh"

export NODE_PATH=/usr/local/lib/node_modules:$HOME/node_modules:$HOME/.npm/libraries:$NODE_PATH
export PATH=$PATH:$HOME/.npm/npm/bin:$HOME/node_modules/.bin
npm install coffee-script