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Introduction and overview
- Wikipedia — Unix signal: http://en.wikipedia.org/wiki/Unix_signal
- Angelo Borsotti — Linux signals in C/C++: ftp://linuxmafia.com/faq/Devtools/signals.html
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Reference
- POSIX — Signal Concepts: http://pubs.opengroup.org/onlinepubs/9699919799/functions/V2_chap02.html
- glibc manual — Signal Handling: http://www.gnu.org/savannah-checkouts/gnu/libc/manual/html_node/Signal-Handling.html
- Linux man pages — signal(7): http://man7.org/linux/man-pages/man7/signal.7.html