Determine file type in Ruby

Question

How does one reliably determine a file\'s type? File extension analysis is not acceptable. There must be a rubyesque tool similar to the UNIX file(1) comman

Answer 1

I recently found mimetype-fu.

It seems to be the easiest reliable solution to get a file's MIME type.

The only caveat is that on a Windows machine it only uses the file extension, whereas on *Nix based systems it works great.