//en.cppreference.com/w/c/program/raise.html
#include <signal.h>
#include <stdio.h>
void signal_handler(int signal)
{
printf("Received signal %d\n", signal);
}
int main(void)
{
// Install a signal handler.
signal(SIGTERM, signal_handler);
printf("Sending signal %d\n", SIGTERM);
raise(SIGTERM);
printf("Exit main()\n");
}