Re: 'wait' in command group in pipeline fails to recognize child process

[Chet Ramey]

On 6/23/21 6:17 PM, Martin Jambon wrote:
> On 6/23/21 6:24 AM, Chet Ramey wrote:
> > On 6/22/21 9:54 PM, Martin Jambon wrote:
> >
> > > In the posix definition, a subshell
> > > - is not necessarily implemented as a separate process
> > > - belongs to a unique shell
> > > - is not a shell
> >
> > Why is it not "a shell?"
>
> Because '$$' doesn't match its process ID.

OK. That's a rather unique definition, but it's a definition.

> I'm not sure why I have to fight over this. It's clearly my 
> misunderstanding. That's why I suggest clarifications in the documentation, 
> if you're interested in creating a better experience for users like me.

I don't think we're fighting here. We're discussing whether or not we need
to invent new nomenclature to clarify an obscure point, or whether a
clearer explanation of the concept of a subshell will suffice.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/