GNU Parallel Bug Reports Option to set -j1 when nested

[Hadrien Lacour]

Hello,

I'm currently using parallel and while I'm very happy with it, I think it'd
benefit from having a --nest or --allow-nesting - something along those lines -
to restrict parallel to one job when already running in a parallel instance.
I currently use
        $ parallel ${PARALLEL_PID+-j1}
in my scripts, which works well, but isn't as consistent (and can't be put in
the PARALLEL environement variable) as an option.

Regards,
Hadrien Lacour