| echo Error >/does/not/exist; echo One:$? | |
| t=BAD | |
| t=Ok >>/cant/be/created; echo One:$? | |
| echo $t | |
| ! >/cant/be/created; echo Zero:$? | |
| exec >/cant/be/created; echo One:$? | |
| exec /bin/true >/cant/be/created; echo One:$? | |
| ! exec /bin/true >/cant/be/created; echo Zero:$? | |
| echo Done |