After Leon posted tonight, figure I will follow in kind.

ken@thinky:~$ history 1000 | awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head
93 ls
82 vi
55 cd
48 git
47 grep
25 gedit
21 sudo
20 merb
19 exit
9 spec

MacDaddy:~ ken$ history 1000 | awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head
50 merb
48 git
46 sudo
45 rake
42 cd
36 ls
29 spec
24 mate
23 vi
12 cp

Surprised sudo is on there so much, but likely from installing a lot of gems lately, and constantly running "sudo rake install" on DataMapper and Merb. Need to move my gems to home directory sometime.