On Oct 10, 2010, at 4:51 PM, Garance A Drosihn <drosih at rpi.edu> wrote: > The latter does not cause an error. Try it: > > # [ "-n" = x ] ; echo $? > 1 > > # [ -e = "no" ] ; echo $? > 1 > > # [ -e = -n ] ; echo $? > 1 1 is error. 0 is success. -- Devin