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Date: Tue, 06 Dec 2022 20:04:27 -0500
From: =?UTF-8?Q?Lawrence_Vel=C3=A1zquez?= <larryv@zsh.org>
To: zsh-users@zsh.org
Subject: Re: The elements of enlightenment
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On Tue, Dec 6, 2022, at 6:52 PM, Lawrence Vel=C3=A1zquez wrote:
> FWIW, ksh has a ${ list;} construct that avoids a subshell:
>
> 	$ cd / && pwd
> 	/
> 	$ : "${ cd /tmp;}" && pwd
> 	/tmp
> 	$ : "${ cd /usr }" && pwd
> 	/usr
>
> Amusingly, the archaic $[...] is still used for arithmetic expansion.
> It's even documented!  (Other shells have memory-holed it.)

To clarify my sloppy editing:  The last paragraph is about zsh.
Other shells also support legacy $[...] but pretend it doesn't
exist.

--=20
vq