We can easily hide or show a hidden a folder in Mac OS X by using following command. To hide folder in finder : 1. Launch Terminal.app from /Applications/Utilities 2. Run command " chflags hidden path-to-folder " The above command will make the target directory hidden in Finder application. To show hidden folder in finder : 1. Launch Terminal.app from /Applications/Utilities 2. Run command " chflags nohidden path-to-folder " The above command will make the target directory visible in Finder application.