Thanks again, theymos.
I found /home/[me]/.bitcoin/debug.log -- sort of, anyway (using find, I mean -- more below).
grep -i hashmeter /home/[me]/.bitcoin/debug.log
... tells me that I'm running at 2,470 khash/s. I'm happy with that.
I'm still confused, however. When I navigate to /home/[me], I see no /.bitcoin there via ls. I've obviously forgotten what little I ever knew re bash scripting. How do I find where debug.log (and wallet.dat !!!) are actually (hatever that means) located