On Tue, Oct 17, 2006 at 09:26:21AM +0200, Joerg Sonnenberger wrote:
> 
> Beware that POSIX echo (and some real world shells) don't even support
> echo -n :-)

begin bikeshed discussion about the required behaviour of echo...

IIRC posix failed to reconcile the difference between the BSD echo
and the AT&T echo.  Largely because putting a foot in either camp
would alienate the other and break too many existing scripts.

So POSIX leaves a lot of the output of echo undefined so that both
the BSD and AT&T/SYSV forms are conformant.

	David

-- 
David Laight: david@l8s.co.uk