Installs the nano text editor on Chrome OS

installnano.sh

#!/bin/sh
sudo echo -n
sudo mkdir /tmp/nano
cd /tmp/nano
sudo wget http://v48.googlecode.com/files/nano.tar.gz
sudo tar -zxvf nano.tar.gz
sudo mv ./nano /usr/bin
sudo rm -rf /tmp/nano

Sorry to be late, but you've gotta remount with r/w.

sudo mount -o rw,remount /

Also that link he had posted contained a precompiled binary, not just the source. So that is what you'll need.

or you can move the file to /usr/local/bin