Mon, 21/04/2008 - 23:15 — peterv

peterv@debian-new:~$ history | awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head
156 cd
103 svn
103 l
29 vi
25 rake
23 less
12 ls
9 mv
8 rm
3 ./script/console

(Note: alias l='ls -l')
Obvious too, I guess ..