dcblack56

Try drawing a simple [flow chart](https://en.wikipedia.org/wiki/Flowchart). Simple boxes with a two connection points and contain no more than a single sentence expressing a step. Arrows move from one step to the next. If you have to repeat something, think about what decision would cause you to go back. Draw a …

Perhaps unreadable, but quick/easy/works -- you just have to master Perl5 perl -ne '$R{$1,$2}++ if m/^(\d+:\d+:\d+)[.]\d+;(\d+)$/; END{ for $tv (keys %R) { ($t,$v)=split($;,$tv); printf "%s occured at %s %d times\n",$v,$t,$R{$tv};}}' FILENAME