Installing Coffee-script on Ubuntu

install-coffee-script.txt

See http://coffeescript.org/

# install (old) nodejs package and npm
$ sudo apt-get install nodejs npm
# install coffee-script (globally)
$ sudo npm install -g coffee-script

Test driving it

square = (x) -> x * x

console.log square 5

coffee -c test.coffee       # produces test.js
coffee -cw test.coffee      # same but watches the file
coffee test.coffee --nodejs # runs it automatically through nodejs