Resume execution where your program stopped, but immediately give it the
signal signal. signal can be the name or the number of a
signal. For example, on many systems signal 2 and signal
SIGINT are both ways of sending an interrupt signal.
Alternatively, if signal is zero, continue execution without
giving a signal. This is useful when your program stopped on account of
a signal and would ordinary see the signal when resumed with the
continue command; signal 0 causes it to resume without a
signal does not repeat when you press [RET] a second time
after executing the command.