 Don't try and terminate the process on garbage collection (allow spawning zombies).
`env` is a table or struct mapping environment variables to values. It can also contain the keys :in, :out, and :err, which allow redirecting stdio in the subprocess. These arguments should be core/file values. Returns the exit status of the program.</pre><a href="https://janetdocs.org/os/execute">Community Examples</a></div><hr><div class="binding"><span id="os/exit" class="binding-sym">os/exit</span> <span class="binding-