Nice...

I had to add space to "" and change NF-1 to NF-2 to get accurate count for all lines except the last and first entry. NF-1 gives the correct output for the last line count only. I have 9,000 lines so I having the last and first wrong is not significant issue.

The next problem is that output only has the time in the line like this:

10:00 4
11:00 6

I need the date in the output. Currently looking through the nawk manual to figure out how to combine time and date into output. Any quick suggestions? BTW, running nawk 1.3.3 from Ubuntu 8.10