Re: Easy shell question: how to make a script killing all his childs when killed?

From: Marco Costalba <mcostalba@gmail.com>
Date: Dec 9, 2006, 17:51 UTC
Message-ID: <e5bfff550612090951l43a83a00o7ea2e244ca562c77@mail.gmail.com>
In-Reply-To: <20061209173703.GA12373@steel.home>

On 12/9/06, Alex Riesen <fork0@t-online.de> wrote:

Show 10 quoted lines

> Marco Costalba, Sat, Dec 09, 2006 16:16:32 +0100:
>
> > P.S: I have no way to exec the script in fancy ways, I can just start
> > it and get is PID.
>
> Which is "fancy" enough. What do you mean "start"? Starting a new
> process usually and notably involves forking and execing (even if the
> first thing to exec will be your shell).
>
>

By 'start' I mean it is done inside Qt QProcess class back box ;-)

Anyway I have written an homegrown 'wanna be hacker' launching script:

git rev-list --header --boundary --parents --topo-order HEAD > /tmp/qgit_136224752.txt & echo $! wait

With this I can get the pid of git-rev-list from my QProcess interface so to be able to kill it when needed with another command ('kill' BTW).

I have googled around and it seems that 'echo $!' and 'wait' _should_ be portable among many shell, please correct me if'm wrong or if the approach is failing (I already know it's ugly ;-) )