Headless install Xcode command line tools, node, and homebrew.

setup.sh

#! /bin/bash

# install xcode clt
curl -o clt.dmg https://s3.amazonaws.com/OHSNAP/command_line_tools_os_x_mavericks_for_xcode__late_october_2013.dmg
hdiutil attach clt.dmg
sudo installer -pkg /Volumes/Command\ Line\ Developer\ Tools/Command\ Line\ Tools\ \(OS\ X\ 10.9\).pkg -target /

# install node
curl -o node.pkg http://nodejs.org/dist/v0.10.25/node-v0.10.25.pkg
sudo installer -pkg node.pkg -target /

# install homebrew
ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

it looks like your dmg download path is now invalid. I couldn't find it so I worked around it by scp ing into the vagrant box