On Fri, Sep 17, 2004 at 10:46:36AM -0400, Jonadab the Unsightly One wrote:
> Juerd <[EMAIL PROTECTED]> writes:
> 
> > Most worlds don't use file extensions, except for humans. 
> 
> You exaggerate their lack of importance.  File extensions don't matter
> to most operating system *kernels*, but they are nevertheless
> important for more than just Windows:
> 
>  * They are of critical importance on Apache-based webservers.
>    
>  * They instruct command-line tab completion for some shells.  This
>    IMO is a biggie, and would be even bigger if more shells were
>    smarter.  (eshell has a leg up here.)
>    
>  * They matter somewhat to many *nix applications, such as Emacs and
>    Gimp.  When I say "matter somewhat", I mean that the app
>    understands what the extension means, and so in the absense of the
>    extension you have to give the app additional information to
>    compensate.

"make" is an important example here

>  * They matter to most GUI file managers in the *nix world.  I
>    personally don't use GUI file managers, but some people do.
> 
>  * They matter somewhat in the VMS world, though not as much as under
>    Windows I think.
>  
>  * They matter in the OS/2 world, if anyone is still using that.  Also
>    DOS, with the same caveat.
>    
>  * On Mac OS X the extension matters for files that don't have
>    filetype/creator codes attached to them yet (unless the file is
>    coming from a source that supplies content-type, such as from a web
>    server or as an email attachment, in which case the content-type
>    instructs the addition of filetype/creator codes).
> 
> The only OS I know of where file extensions are *totally* not used is
> Archimedes.  It doesn't allow them at all, from what I understand.

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