A little script to update all currently installed programs with homebrew. Also removes old versions.

brewpdate.sh

#!/bin/sh
echo "searching for updates..."
brewoutput=`brew update`
if [ "$brewoutput" == "Already up-to-date." ]
	then
	echo "nothing to update"
else
	echo "updating..."
	brewoutput=`brew upgrade --all`
	if [[ "$brewoutput" ==  *".app bundles were installed."* ]]
	then
		echo "symlinking apps to /Applications..."
		brew linkapps
	fi
	echo "removing old stuff..."
	brew cleanup
fi