du --version
fi
+pwd=`pwd`
tmp=du2-$$
-trap 'status=$?; rm -rf $tmp && exit $status' 0
-trap 'exit $?' 1 2 13 15
+trap 'status=$?; cd $pwd; rm -rf $tmp && exit $status' 0
+trap '(exit $?); exit' 1 2 13 15
+
+framework_failure=0
+mkdir $tmp || framework_failure=1
+cd $tmp || framework_failure=1
+
+if test $framework_failure = 1; then
+ echo 'failure in testing framework'
+ (exit 1); exit
+fi
mkdir -p $tmp/1 $tmp/2
du . $tmp > /dev/null || fail=1
du .. $tmp > /dev/null || fail=1
-exit $fail
+(exit $fail); exit