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trap is the bash builtin that allows you to execute commands when the current script receives a particular signal.
Uses $0 for the script name, $$ for the script PID, tee to output to STDOUT as well as a log file and ps to log other running processes.
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I like the concept, but maybe a simpler example to show how to use trap? It took me a minute to realize that the submission was one command that takes in a string and a list of signals. Either way, you definitely taught me new, very useful command! Cheers!
Sure thing joem86! I posted it because it was something useful that I needed in this particular form, but a simplified example of trap is surely useful to others.