Viktor Dukhovni:
>
>
> > On May 31, 2018, at 8:04 AM, Dirk St?cker <post...@dstoecker.de> wrote:
> >
> > Even after years of UNIX experience there are commands and syntaxes I've
> > newer seen before. That <(...) is surely helpful elsewhere, when I can
> > remember it...
>
> It is of course a "bashism" and not a POSIX-shell feature, so you
> won't find in /bin/sh on most systems or in /bin/ksh. It is the
> primary reason I use bash as my shell, <(cmd) is just way too
> convenient, I use it dozens of times a day.
>
> I don't think that the "comm" or "join" tricks belong in postconf(1)
> documentation, but they could be in a Postfix-related Wiki, or
> HOWTO document.
I see no problem, just need to add a note that it is non-portable dialect.
Wietse
