Re: Question on $@ vs $@$@

[Greg Wooledge <greg@xxxxxxxxxxxx>]

On Wed, Aug 14, 2024 at 17:58:15 +0300, Oğuz wrote:
> On Wed, Aug 14, 2024 at 5:23 PM Robert Elz <kre@xxxxxxxxxxxxx> wrote:
> > However, as ksh93 makes "" from this
> > expansion, and so probably ksh88 might have done as well
> 
> No, both Sun and SCO variants expand "$@$@" to zero fields when $# is 0.

HP-UX 10.20 as well:

# set --
# printf '<%s> ' START "$@" END; echo
<START> <END>
# printf '<%s> ' START "$@$@" END; echo
<START> <END>
# uname -a
HP-UX vandev B.10.20 A 9000/778 2000153729 two-user license