> Date: Wed, 10 Mar 2010 15:17:03 -0500
> From: [email protected]
> To: [email protected]; [email protected]
> Subject: Re: Re: [ast-users] Where does POSIX say `...` is obsolete?
> CC: 
> 
> cc:  [email protected]
> Subject: Re: Re: [ast-users] Where does POSIX say `...` is obsolete?
> --------
> 
> > David, can you confirm?
> > 
> > Olga
> > 
> > On Wed, Mar 10, 2010 at 1:30 AM, Finnbarr Murphy <[email protected]> wrote:
> > > The current POSIX standard does not say that `...` is obsolete. See 
> > > Section
> > > 2.6.3 Command Substitution
> > >
> > > http://www.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18
> > _06_03
> > >
> > > - Finnbarr
> > >
> > >> Date: Wed, 10 Mar 2010 00:48:15 +0100
> > >> From: [email protected]
> > >> To: [email protected]
> > >> Subject: [ast-users] Where does POSIX say `...` is obsolete?
> > >>
> > >> Where can I find the part of the POSIX standard which declares `...`
> > >> as obsolete and $(...) should be used instead?
> > >
> > >
> 
> I don't have the rationalle in front of me, but I thought that it said
> it in the rationalle and explained the reason for adding $(...).
> 
> The KornShell Command and Programming Language book lists it as
> obsolete.
> 
> I believe that all the examples in the standard use $(...), not `...`.

The standard defines it as two versions of the same thing.
Furthermore, for many application contexts (like quoting
or nesting) explanations for both variants are explicitly
listed without any preference it seems.

I found its obsolescence told only in the Kornshell book.
In the standards document I haven't found a single note
about it.

The advantages of the newer form are so apparent that I
wonder why one would stick to the older version, though
(as far as new shell code is concerned).

Janis

> 
> David Korn
> [email protected]
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