I don't like memes, but this one is exceptional:

> history 1|awk '{print $2}'|awk 'BEGIN {FS="|"} {print $1}'|sort|uniq -c|sort -nr|head -10
  8   debuild
 10   ls
 10   hot-babe
  3   vi
  8   cd
  6   less
  1   more
 19   l
  5   slay
  8   killall

Yeah, I have been doing some Debian work recently.