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by sohkamyung 3866 days ago
For a more in-depth look at Signals, there's Michael Kerrisk's Linux Man Pages on Signals [1]. AFAIK, the best reference on Signals is in the book by Stevens and Rago [2].

[1] http://man7.org/linux/man-pages/man7/signal.7.html [2] Advanced Programming in the Unix Environment, Second Edition