Sasidhar Kasturi wrote:
> Thank you,
>          Is it that /usr/bin binaries are more advanced than that of 
> /xpg4 things or .. the extensions of the /xpg4 things?

They *should* be the same level of "advancement", but each has a
different set of promises and expectations it needs to live up to...

> 
> If i want to make some modifications in the code.. Can i do it for 
> /xpg4/bin commands or .. i should do it for /usr/bin commands??


If you are doing this "just for yourself", it doesn't matter - fix
the one you use.  If you intend to push these changes back into the
OS.o source base, you will need to make the changes to both (and,
possibly interact with the OpenSolaris ARC Community if your changes
affect the architecture/interfaces of the commands).

In the case of df, I'm not at all sure why the two commands are
different. (I'm sure someone else will chime in and educate me :-)

    -John

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