From: Robin Stocker <robin-lists-ruby-talk@...>
Date: 2005-06-02T01:39:25+09:00
Subject: Re: Document identification

M. Eteum wrote:
>      Is there a way to identify any documents from its header? I have a 
> bunch of document collected over the year from multi platform system, 
> Mac, Windows, and various unix/linux variant where some of the document 
> does not have file extension. Are there a list that tells us what header 
> should we expect for certain documents e.g. txt, rtf, pdf, jpg, mpg, 
> word, excel, visio, etc ...

Hi,

On a Unix system you could use the "file" command, it is able to detect 
file types even when there's no extension.
I don't know if a Ruby module exists for this purpose though.

Regards,
Robin