Re: Basic ps Tips

On Sun, 4 Aug 2024 12:55:27 -0000 (UTC), Christian Weisgerber wrote:

I'll just quote the OpenBSD man page:
 
------------------->
STANDARDS
     The ps utility is compliant with the IEEE Std 1003.1-2008
     ("POSIX.1") specification, except that the flag [-G] is unsupported
     and the flags [-ptU] support only single arguments, not lists.
 
     The flags [-defglnu] are marked by IEEE Std 1003.1-2008 ("POSIX.1")
     as being an X/Open System Interfaces option.  Of these, [-dfgn] are
     not supported by this implementation of ps; behaviour for the flags
     [-elu] differs between this implementation and the X/Open System
     Interfaces option of IEEE Std 1003.1-2008 ("POSIX.1").

Compare the Linux version <https://manpages.debian.org/1/ps.1.en.html>:

    STANDARDS
           This ps conforms to:

           1   Version 2 of the Single Unix Specification
           2   The Open Group Technical Standard Base Specifications, Issue 6
           3   IEEE Std 1003.1, 2004 Edition
           4   X/Open System Interfaces Extension [UP XSI]
           5   ISO/IEC 9945:2003