unix:kill/2

kill(+Pid, +Signal) is det: Deliver a software interrupt to the process with identifier Pid using software-interrupt number Signal. See also on_signal/2. Signals can be specified as an integer or signal name, where signal names are derived from the C constant by dropping the SIG prefix and mapping to lowercase. E.g. int is the same as SIGINT in C. The meaning of the signal numbers can be found in the Unix manual.