R: Why mc start without subshell by default?

SZABO Gergely gergely.szabo@knorr-bremse.com
Wed Nov 3 12:45:00 GMT 2010

Marco Atzeri <marco_atzeri <at> yahoo.it> writes:

> --- Mer 3/11/10, Oleksandr Gavenko  ha scritto:
> > I can turn on subshell by:
> > 
> >   $ mc -U
> > 
> > This is useful by default or I miss something?
> > 
> > 
> It is useful but there is one problem on cygwin.
> When you close mc the subshell will not exit, so you will finish
> with a "zombie" bash shell running.
> Marco

I thought mc's lacking subshell support is a hard fact of life in Cygwin, until
the -U option was pointed out here. It's a huge improvement.

It's quite easy to kill the zombie subshells.
Put a line into /etc/crontab (assuming you're running cron):

*/6 * * * * SYSTEM ps -a | sed -n 's/I  *\([0-9][0-9]*\)  *1  *..*bash$/\1/p' |
xargs kill -KILL

This will kill all bash processes every 6 minutes, who are waiting for input in
the background (I) and whose parent process (PPID) is 1 (not a terminal, not mc).

Best regards

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