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

Marco Costalba, Sat, Dec 09, 2006 18:51:57 +0100:

quoted

quoted

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).

Why do you need to save it in temporary file at all? Why don't you
read the output like gitk does?  You can take a look at popen(3). It's
known to be portable among operating systems and libc's.  Or, BTW, why
don't you just read qprocess.h, use processIdentifier()/pid(),
read*()-methods and the like?  (though, looking at the QProcess in