Comandos para ver carpetas en Finder

chflags nohidden ~/Library/

chflags hidden ~/Library

http://osxdaily.com/2011/07/04/show-library-directory-in-mac-os-x-lion/

defaults write com.apple.finder AppleShowAllFiles -bool YES

killall Finder

defaults write com.apple.finder AppleShowAllFiles -bool NO

killall finder

http://www.macosxtips.co.uk/index_files/quickly-show-hidden-files.php