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I have a folder that starts with a dot . but unable to display them in Finder.

How can I say that for folder X Finder should also display hidden files/folders?

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I'll just plug that Lion works the same as Snow Leopard with the hidden preference AppleShowAllFiles and Finder. – bmike Jul 25 '11 at 19:42
up vote 28 down vote accepted

I don't think you can set this for individual folders. To set it globally, so that Finder always shows hidden files, run Terminal and enter the following two commands:

defaults write AppleShowAllFiles TRUE
killall Finder

To switch back, do the same but substitute FALSE for TRUE.

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I myself use hiddenfiles widget. it's so easy to use.

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Beside that you can use free 3rd-party software like Deeper or TinkerTool.

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+1 for hiddenfiles widget; incredibly easy to use – g . Jan 3 '11 at 19:44
Another +1 for the Hidden Files widget. Quick and easy. – Matthew Frederick Jan 3 '11 at 20:22
At the time of writing the download link for the Hidden Files widget is broken. – saw-lau Jul 24 '11 at 9:07
@saw-lau I test the link at it's fine now. – Am1rr3zA Jul 24 '11 at 14:22
@Am1rr3zA - Deeper link is still only to AppStore the others are OK – Mark Apr 15 '13 at 10:50

You can make all hidden files visible by a free app Funter. I use this tool to hide or unhide files and folders on Mac.

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