On 08/26/2010 10:20 AM, Greg Wooledge wrote:
On Thu, Aug 26, 2010 at 11:13:21AM -0500, E R wrote:
With bash is there any difference between the expressions ${1+"$@"} and "$@"?
No.
Is there any difference with other sh-like shells?
In some Bourne shells, "$@" with an empty set of positional parameters
may expand to a single empty words, instead of no words at all. Hence
the ${1+"$@"} workaround for ancient shells.
Versions of zsh were the most recently afflicted by this, although it
has been fixed there for several years now.
--
Eric Blake ebl...@redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
