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From: Bart Schaefer <schaefer@brasslantern.com>
Date: Thu, 10 Aug 2017 15:19:47 -0700
Message-ID: <CAH+w=7Yd0O2_KqXe84X95-zgLFZOoCzLPKMWUrkT6hGh4jf8Ww@mail.gmail.com>
Subject: Re: PATH_DIRS
To: Ray Andrews <rayandrews@eastlink.ca>
Cc: Zsh Users <zsh-users@zsh.org>
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On Thu, Aug 10, 2017 at 2:46 PM, Ray Andrews <rayandrews@eastlink.ca> wrote:
> Noticing how PATH_DIRS behaves in a way parallel or complementary to PATH, I
> wonder if whence might be tweaked to search for scripts on PATH_DIRS

PATH_DIRS is a setopt, it *uses* $PATH.  It's not a parameter
providing alternate directories.

Anyway, it already does search like that.  You just have to chmod +x
the script files (and add a #! line if they aren't zsh scripts).

What it WON'T do is source scripts it finds that way into the current
shell.  It'll always fork a subshell for them.  Too many opportunities
for mayhem if the user hasn't explicitly asked (via the "." command)
to have his current shell altered (potentially) by the script.