On Wed, Jan 20, 2010 at 08:50:07PM +0000, Alexander Clouter wrote: > Counter to the documentation for the dash shell, it seems that on my > x86_64 filth under Debian only does 32bit math. As I have configured my POSIX apparently specifies at least "long" type arithmetic for shells, so if your dash indeed is a 64-bit binary it's in violation of POSIX. What does file $(which $SHELL) say? The dash binary on my Fedora 12 i386 seems to perform 64-bit arithmetic. Ralf