Function killpg
Source pub fn killpg<T: Into<Option<Signal>>>(pgrp: Pid, signal: T) -> Result<()>
Expand description
Send a signal to a process group
§Arguments
pgrp -   Process group to signal.  If less then or equal 1, the behavior
is platform-specific. 
signal - Signal to send. If None, killpg will only preform error
checking and won’t send any signal. 
See Also killpg(3).