for i in bin man lib; do 
  mkdir -p ~/.npm/${i} 
done 
cat <<END > ~/.npmrc
binroot = ~/.npm/bin
manroot = ~/.npm/man
root = ~/.npm/lib
END
curl http://npmjs.org/install.sh | sh 
echo 'export PATH="${PATH}:~/.npm/bin"' >> ~/.bashrc
echo 'export NODE_PATH="${HOME}/.npm/lib"' >> ~/.bashrc
. .bashrc
npm ls