Thread: Show Hidden Files in Mac OS X

Open the Terminal application. You can find it under Applications -> Utilities. Type defaults write com.apple.finder Apple Show All Files Yes.
Launch the Finder to see the hidden files. They are pre-fixed with a dot(.). Please be careful while changing anything in these files. The OS X uses them to manage the Mac.
Tip: To move to specific directory in the Terminal, type "cd" and drag the directory from the Finder to the terminal and hit enter. You can now access the files in this directory using the Terminal.