4 ms·

The --forest or as later mentioned the -f does not exist in the freeBSD version of ps (I'm assuming all bsd's). If my understanding is correct OSX uses the fre

by Dobbs 18y ago

The --forest or as later mentioned the -f does not exist in the freeBSD version of ps (I'm assuming all bsd's). If my understanding is correct OSX uses the freebsd utilities so that would be your reason.