Show Hidden Files in Mac Finder
Setting up a new machine is a great time for me to write blog posts about configuration settings that I'd forgotten to document. Much of the time I refer back to this post to figure out how I did things like Add Dock Separators and add support for Xbox controllers.
One important configuration detail developers like myself need is the ability to view hidden and dot files from within Finder:

To show hidden files within Finder, execute the following from the command line terminal:
# Always show hidden files
defaults write com.apple.finder AppleShowAllFiles YES
# Reset Finder for the settings to take effect
killall Dock
You'd think your machine was empty until you see the mountain of hidden files that macOS hides by default! I understand why Apple hides these files by default: they want the machine to seem simple for most users. Us developers, however, need to know where all the skeletons are!
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One device and app feature I've come to appreciate is the ability to change between light and dark modes. If you've ever done late night coding or reading, you know how amazing a dark theme can be for preventing eye strain and the headaches that result.
Cmd + Shift + .
I found it much quicker. Have a great day!
Easy to think about it. Cmd + Shift + dot (like a dotfiles — hidden files in mac OS)
I’ve setup two aliases for this so it’s easy to toggle between the modes.
Or you can use ⌘+ ⇧ + .
There is an easier way to do this. Just press ⌘⇧. in the Finder or open/save dialog.
When did this come out??? ⌘+ ⇧ + .