Abnormal Interpreter Shutdown

[k3xji]

I think what I am looking for is SetConsoleCtrlHandler(..) which
receives signals for CTRL+C and system shutdown. I don't want to take
the power outage into account because as far as I can see there is no
portable/simple/reliable way to accomplish that. So, thanks for the
tip again.

So what is the equivalent of this API in Linux? How can I accomplish
the same behavior for Linux?

Thanks a lot.