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On Mon, May 2, 2011 at 10:55 AM, Marco <netuse@lavabit.com> wrote:
> How can I determine the mime type of a file (like the unix
> command “file -i <some_file>”)?

Why not just this? ;)

local type = io.popen('file -i '..myfile):read()

Otherwise, you need a catalog, and that is dependent on system setup
on something like Gnome, which provides such a thing helpfully encoded
as XML.

steve d.