Meme, no really, I know you want to.

[thesixthring]

history|awk '{a[$2]++} END{for(i in a){printf "%5d\t%s\n",a[i],i}}'|sort -rn|head

159 ghci
60 cd
52 ls
25 ghc
20 nuke
18 flasm
15 mate
11 sudo
10 ping
9 open

poortable:~ $