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Adjust brightness from Terminal
Authored by: aGr[j5(6WU on Oct 01, '12 05:10:30PM
Does this work on Mountain Lion? I've just downloaded it, unzipped and run it and get the following:
dyld: Symbol not found: _OBJC_CLASS_$_O3Manager
  Referenced from: /Users/<username>/Downloads/brightness
  Expected in: /System/Library/PrivateFrameworks/DisplayServices.framework/Versions/A/DisplayServices
 in /Users/<username>/Downloads/brightness
Trace/BPT trap: 5
Mountain Lion 10.8.2 on a MacBook Pro

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Adjust brightness from Terminal
Authored by: spencermefford on Jun 08, '13 11:03:58AM

You'll need to recompile it to work on Mountain Lion, but it's really easy. First, grab the source from and save it somewhere on your computer. Pop open terminal and run the following command from the same directory as brightness.c:

gcc -std=c99 -o brightness brightness.c -framework IOKit -framework ApplicationServices

You must have XCode installed to run this, and it worked like a charm for me. Move to /usr/local/bin and make sure it has the correct permissions. Hope this is helpful.

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