A bit late, but here’s mine:
$ history|awk '{a[$2]++ } END{for(i in a){print a[i] " " i}}'|sort -rn|head
127 cd
77 vi
40 svn
31 ls
28 rm
27 sudo
27 make
22 ssh
14 cp
9 mv
Looks like I still don’t really trust Nautilus to do some of the basic file management 😉