| true; a=1; echo Zero1:$? | |
| false; a=1; echo Zero2:$? | |
| false || a=1; echo Zero3:$? | |
| false || x=$? y=`echo $?`; echo Zero4:$? x:$x y:$y | |
| false || x=$? y=`echo $?; exit 3`; echo Three:$? x:$x y:$y | |
| #ash sets z=1 instead of z=3. disabled for now | |
| #false || x=$? y=`echo $?; exit 3` z=`echo $?`; echo x:$x y:$y z:$z |