By default Mac OS X hides a number of files and directories in Finder that are not typically required by normal users. This includes hiding dot-files (.DS_Store, .Trashes, etc.) and system directories (e.g. /bin, /etc, etc.). This tweak can use be used to make all these files and folders visible in Finder.
Start a new Terminal session (in Finder click Applications > Utilities > Terminal).
To enable this setting, type (or copy and paste) the following command:
defaults write com.apple.finder AppleShowAllFiles -boolean true
To reset this setting to the default value, type (or copy and paste) the following command:
defaults write com.apple.finder AppleShowAllFiles -boolean false
To activate this tweak immediately, type the following command, or wait until the next reboot:
Close the Terminal session by typing
exit at the prompt.
Note: This can cause some installers to show several dot-files in the installer window pushing down the app. If this occurs simply scroll down to find it and copy it to the Applications folder as normal.
Disclaimer: Making any changes to your system can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from these modifications can be resolved. Please follow the instructions carefully and use the information provided at your own risk.