I don't do memes as a rule, but this one's been doing the rounds on Planet Ubuntu, so I thought I'd give it a shot, too.
So, the results of the query are:
graham@bloodnok: ~$ history|awk '{a[$2]++ } END{for(i in a){print a[i] " "}}'|sort -rn|head93 bzr66 python2.446 sudo44 cd39 grep22 make19 ls18 vim11 tail11 lpvimSo now you know.