quick and dirty way to see what NSWorkspace thinks a file's UTI is…

getuti.py

#!/usr/bin/env python

from AppKit import NSWorkspace
import sys

if __name__ == '__main__':
	if not len(sys.argv) > 1:
		print 'Usage: getuti path'
		sys.exit(1)
	else:
		print NSWorkspace.sharedWorkspace().typeOfFile_error_(sys.argv[1], None)[0]

I wrote this little nugget at least 20 times, whenever I need to debug UTI-related stuff. Here so I hopefully remember it's here.

Usage:

1. put somewhere in your PATH,
2. chmod to executable,
3. getuti
4. You'll have NSWorkspace's opinion, which is likely what you'd be using in your Cocoa app for that purpose too.