FILES in this archive:

execution.png - (screenshot) shows a sample execution
FILES         - this file
MySQL.png     - (screenshot) database table at some execution stage
notes.pl      - the source
README        - how to run the source with your database
run           - put run parameters here for fast reference
runsql        - parameters to monitor database (perhaps not useful)
writevt.c     - Used to echo a string to /dev/tty;
                search for "system" in notes.pl to see usage.
                Compile and put in your $PATH first thing.