spec test index / oilshell.org
| case | bash | zsh | osh | description |
| 0 | pass | pass | pass | C-style for loop |
| 1 | pass | pass | pass | For loop with and without semicolon |
| 2 | pass | pass | pass | Empty init |
| 3 | pass | pass | pass | Empty init and cond |
| 4 | pass | pass | pass | Infinite loop with ((;;)) |
15 passed, 0 ok, 0 known unimplemented, 0 known bugs, 0 failed, 0 skipped