signal signal
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.
signal does not repeat when you press RET a second time
after executing the command.
Invoking the signal command is not the same as invoking the
kill utility from the shell. Sending a signal with kill
causes GDB to decide what to do with the signal depending on
the signal handling tables (see section Signals). The signal command
passes the signal directly to your program.
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