How to show hidden files on Mac OS

You can open the Terminal in 2 Steps


1 Step : Finder  > Application > Utility > Terminal
2 Step : Go to search spotlight > Terminal

defaults write com.apple.Finder AppleShowAllFiles TRUE (This comand is used for Mac OS X or lower )
defaults write com.apple.finder AppleShowAllFiles TRUE    ( This command is used to show all  hidden files in Mavericks  )

killall Finder (Hit Return, nothing happens yet because you must relaunch the Finder for the changes to take effect. This is done by ‘killing’  the Finder process, which is also done through the command line with the following string )

defaults write com.apple.Finder AppleShowAllFiles FALSE (This comand is used for Mac OS X or lower )                                                        
defaults write com.apple.finder AppleShowAllFiles FALSE   (This command is used to Reverse to Default & Make Files Hidden Again in Mavericks )
killall Finder


Use the shortcut key to reveal the hidden files 

Command + Shift + .         ( show / hide hidden files shortcut )