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From: candycanearter07 <candycanearter07@candycanearter07.nomail.afraid>
Newsgroups: comp.os.linux.advocacy
Subject: Re: Something I Never Fucking Knew
Date: Sun, 23 Jun 2024 06:10:05 -0000 (UTC)
Organization: the-candyden-of-code
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Farley Flud <ff@linux.rocks> wrote at 12:01 this Saturday (GMT):
> On 22 Jun 2024 09:49:00 GMT, Stéphane CARPENTIER wrote:
>
>> Le 22-06-2024, candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> a écrit :
>>>
>>> Well, it's a common technique. I've seen plenty of "fake file
>>> extensions" that just use an existing format. Of course, you can easily
>>> tell by looking at the magic number on the file.
>> 
>> You can, he can't. "File" is a too difficult command for him.
>> 
>
> You are both totally incorrect.  The "file" command reports only
> that is an epub file:
>
> file Aspirin.epub
>
> Aspirin.epub: EPUB document
>
> If I change the suffix to "zip" it still shows "EPUB document."
>
>
> file Aspirin.zip
>
> Aspirin.zip: EPUB document
>
>
> Using a hex editor, the magic number is that of zip:
>
> 50 4B 03 04
>
> The file, even if not renamed, can also be unzipped.
>
> Let's see y'all explain this behavior.


Hm.. maybe you could try `file -k`?
(print all possible matches rather than just the strongest match)
-- 
user <candycane> is generated from /dev/urandom