Show hidden macOS files

In macOS Sierra Apple added a Finder keyboard shortcut that makes it possible to quickly show all the hidden files and folders. You just need to do the following:

• Open the Finder
• Go to your Macintosh HD folder (access this from Devices in the left column)
• Hold down Cmd + Shift + . (dot)
• All the hidden files will become visible
• Hold down Cmd + Shift + . (dot) a second time to hide the files again

Another way to view hidden mac files is with terminal.

• Open Terminal
• Run the following script:

defaults write com.apple.Finder AppleShowAllFiles true

killall Finder

• If you want to switch it back, simply change the true to false.