Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I tried these, all without success:

  • ps --version
  • ps -version
  • ps -v
  • ps -V
  • man ps, searching for version information


  • Mac OS X 10.8.2
  • MacBook Pro 2009
share|improve this question
I was able to find PS(1) in the man page, but I'm not sure that this provides sufficient version information for a bug report I'm making to Apple. – mcandre Oct 1 '12 at 18:08
up vote 2 down vote accepted

ps is part of the Mac OS X core distribution and released as open source by Apple. It is part of the adv_cmds package and has no version number on its own.

Unless you installed a custom ps, you can identify it by providing your OS X version number, or the version of the adv_cmds package on corresponding to your OS X version, e.g. version/release 149 for OS X 10.8.2.

share|improve this answer

It looks like it doesn't want to tell its version. The best I can up with is strings -a $(which ps). You'll find out that it is the FreeBSD version, mine says ps.c,v 1.110 2005/02/09.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.