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

[felix]

On Sun, Nov 01, 2020 at 11:13:37AM +0100, clime wrote:
> On Sun, 1 Nov 2020 at 11:01, Oğuz <oguzismailuysal@gmail.com> wrote:
> >
> > You can use the loadable builtin `setpgid' if you have to. Assuming 
> > BASH_LOADABLES_BUILTIN is set, this should work:
> >
> >     enable -f setpgid{,}
> >     { setpgid $BASHPID{,}; a | b; } &
> >     setpgid $!{,}
> >     kill -- -$!
> 
> Hello, it doesn't work for me:
I've not found any reference about
    kill -- -$!
but try this:

    clear;tty=$(tty) tty=${tty#*/dev/};{
        { sleep 2; echo a ;} |
            { wc -c ; sleep 2; echo b ;}
    } & ps --tty $tty fw; kill -s INT -$! ; ps --tty $tty fw

Seem make the job.

-- 
 Félix Hauri  -  <felix@f-hauri.ch>  -  http://www.f-hauri.ch