There is a new and improved killprosession.sh available in the latest pt3.14 build of ProTop. You can grab a copy by downloading ProTop Free here: https://wss.com/progress-openedge-monitoring-with-protop/, The download is free and you can do a local install if you're not interested in trending on our web portal and giving us your contact info.
An explanation of some of the new features is available here: https://community.wss.com/topic/48/new-killprosession-sh-in-pt3-14.
I have done quite a bit of testing on AIX and Linux but very little on HPUX. Regardless, testers on all platforms are happily encouraged to download it, try it and share their comments, suggestions and experiences here. Sorry Windows people, there is no such thing as a kill signal in DOS.
A few WARNINGS: