(XPG4 Only.) ????

[Darrell Tyler_1]

Hello All,
I have what I hope to be a simple question. However, neither my co-workers nor I have an answer. When displaying man pages, I sometimes see ' (XPG4 Only.).' What does (XPG4 Only.) mean???

[Geoff Wild · Accepted solution]

X/Open Portability Guide, Issue 4

XPG4 is a superset of POSIX.1-1990, POSIX.2-1992, and POSIX.2a-1992 containing extensions to POSIX standards from XPG3

More info on http://www.opengroup.org/

Rgds...Geoff

[Darrell Tyler_1]

Thank you very much Geoff for the quick response.

[Pete Randall]

Darrell,

You can also glean some usage information from the man page for ps - look for the UNIX95 references. It's used like this:

UNIX95= ps -U $USERNAME

note the space between the equal sign and the ps command!


Pete