(OS X) Fast version check of Apps

app-versions-fast-but-not-error-free.sh

#!/bin/bash
#----------AUTHOR------------
	# Jacob Salmela
	# 24 May 2013

#----------RESOURCES---------
	# http://stackoverflow.com/questions/4128235/bash-shell-scripting-what-is-the-exact-meaning-of-ifs-n

#---------DESCRIPTION--------
	# Attempts to list all apps in /Applications and their version numbers

#----------VARIABLES---------	
	# Avoid trailing newlines so apps with spaces in their names still appear on one line
	IFS=$'\n'
	
#----------FUNCTIONS---------
##########################
function listAppVersions()
	{
	# For each .app in ./Applications
	for i in $(find /Applications -type d -name "*.app" -maxdepth 1)
	do
		# echo the app name
	    echo "$i" | cut -d'/' -f3-
    
   		# Read the version number and send errors to the Sarlaac Pit
    	defaults read "$i"/Contents/version CFBundleShortVersionString 2>/dev/null
    
    	# If the version.plist does not exist, check the Info.plist and send errors to the Sarlaac Pit
    	if [ $? -ne 0 ];then
    		defaults read "$i"/Contents/Info CFBundleShortVersionString 2>/dev/null
    	fi
	done
	}
	
#---------------------------------
#----------BEGIN SCRIPT-----------
#---------------------------------
listAppVersions