show hidden files in mac finder

In Finder, you can click your computer's hard drive under Locations, then open your Macintosh HD folder. Press Command + Shift + . (period) to make the hidden files appear. You can also do the same from inside the Documents, Applications, and Desktop folders. 

If you want hide the files again, press Command + Shift + . (period) again. The post is finished because we are giving VALUE IN BRIEF.

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