Snow Leopard (Mac OS X 10.6) brought many refinements to the operating system that aren’t immediately apparent to most users. A lot of tinkering around reveals some very cool additions. One of those hidden features is the ability to view invisible files in Open/Save dialog boxes.
View invisible files in Open/Save dialog boxes
When you’re in an Open or Save dialog box, simply hit
Command + Shift + . (period key) and all the invisible files and folders on your drive will appear in the dialog box, as seen in the screenshot above. This is a temporary activation, so the next time you visit an Open or Save dialog box, the invisible files will be hidden again.
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What is an Open or Save dialog box? How do I get to one?
This article is useless without knowing that.
The screenshot above illustrates the dialog box that appears when selecting Open, Save, or Save As from the File menu of any application on the Mac.