I bought Macbook pro core i7 couple of months ago and upgraded to OS X Mavericks as soon as Apple released first time a free version for their loyal users.
while working on MAMP, I had a need to show the hidden library folder and .htaccess files in finder.
here is the terminal command to show the hidden files and folders on OS X Mavericks
defaults write com.apple.finder AppleShowAllFiles TRUE
Note: You will write this command in Terminal.