Re: Cleanup in a bash script

[Nicolas George <george@nsup.org>]

Greg Wooledge (12024-10-02):
> In that case, there are THREE foreground processes which receive a SIGINT:
> 
>  * The interactive shell, which ignores it, because interactive shells
>    always ignore SIGINT.

You are very right on the rest, but this is a mistake: the interactive
shell is not in the foreground at this point.

Since foreground / background is about process group, it could not: each
pipeline is started in a group, so that it can be moved from the
foreground to the background and back. The parent shell cannot enter and
leave these groups at will.

Regards,

-- 
  Nicolas George