f they have not been closed. Then, if os/proc-wait was not already called on proc, os/proc-wait is called on it, and it returns the exit code returned by os/proc-wait. Otherwise, returns nil.</pre><a href="https://janetdocs.org/os/proc-close">Community Examples</a></div><hr><div class="binding"><span id="os/proc-kill" class="binding-sym">os/proc-kill</span> <span class="binding-type">cfunction</span> <span class="binding-type"><a href="https://github.com/janet-lang/janet/blob/0d9e999/src/core/os.c#L737">sou