Toggle Hidden Files in Finder
Run Automator and create new Application. Add task Run Shell script and paste follow code:
STATUS=`defaults read com.apple.finder AppleShowAllFiles`
if [ $STATUS == YES ];
then
defaults write com.apple.finder AppleShowAllFiles NO
else
defaults write com.apple.finder AppleShowAllFiles YES
fi
killall Finder
Save application. From now can Tooggle