ps can not recognize the user defined format expressions.
such as ps -o %p
does seem to be very broken.
The PS also doesn't match the MAN pages, which give examples which don't work.
I have many scripts which have broken. Should I attempt to fix it and submit
a patch, or is someone at RedHat already working on it?
If you want to work on this code, please
read ps/HACKING which the author so kindly
provided. You broke the retry logic when
you blindly added the code to complain
about unknown format options, and you
obviously did not run examples from the
Works for me at least in 2.0.7-23