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Re: bash: please provide an easy way to spawn a new process group from s

From: clime
Subject: Re: bash: please provide an easy way to spawn a new process group from script
Date: Sun, 1 Nov 2020 22:36:21 +0100

On Sun, 1 Nov 2020 at 21:23, Chet Ramey <chet.ramey@case.edu> wrote:
> On 11/1/20 5:13 AM, clime wrote:
> > Work with process groups should be natural in bash. It can't be that
> > complex. I struggled with this for several hours and found lots of
> > people on the net that struggled with the same problem too.
> It is natural, and job control is the most natural way to do it. If you
> don't want to use job control for some reason, the `setpgid' loadable
> builtin exists, as others have noted.

Job control doesn't seem to be a good solution in scripts when it has side
effects like changing the way signals are handled.

setpgid syntax looks way too complex and unusable for me anyway right now
because i need something which is supported by default.

> If you don't want to use the loadable builtin, you can easily write a
> standalone program that, when executed, becomes a process group leader
> and execs the remaining arguments.

That's very much something that I wouldn't want to do for a background
pipeline one-liner.

Anyway, I don't want to argue about this. If people here don't agree,
there is no point in it.
Best regards

> --
> ``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/

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