Example:
user@host CLANG32 ~/guidgrabber
$ ./guidgrabber.sh /d/Program\ Files/Windows\ Kits/10/Lib/10.0.22000.0/um/x86/Bits.Lib
...
DEFINE_GUID(CLSID_BackgroundCopyQMgr, 0x69AD4AEE, 0x51BE, 0x439B, 0xA9, 0x2C, 0x86, 0xAE, 0x49, 0x0E, 0x8B, 0x30);
DEFINE_GUID(IID_IBackgroundCopyCallback1, 0x084F6593, 0x3800, 0x4E08, 0x9B, 0x59, 0x99, 0xFA, 0x59, 0xAD, 0xDF, 0x82);
DEFINE_GUID(IID_IBackgroundCopyGroup, 0x1DED80A7, 0x53EA, 0x424F, 0x8A, 0x04, 0x17, 0xFE, 0xA9, 0xAD, 0xC4, 0xF5);
DEFINE_GUID(IID_IBackgroundCopyJob1, 0x59F5553C, 0x2031, 0x4629, 0xBB, 0x18, 0x26, 0x45, 0xA6, 0x97, 0x09, 0x47);
DEFINE_GUID(IID_IBackgroundCopyQMgr, 0x16F41C69, 0x09F5, 0x41D2, 0x8C, 0xD8, 0x3C, 0x08, 0xC4, 0x7B, 0xC8, 0xA8);