That looks about right

$ history|awk '{print $2}'|sort|uniq -c|sort -rn|head
    424 cd
    263 rm
    243 mplayer
    241 git
    179 sudo
    155 pod
    142 ack
    141 perl
    101 ll
    100 mv

(Yes, I am participating in another meme – all the while not writing much else. Sorry, sorry.)

Via Jakub Steiner.