This seems to be a meme going around. run this and paste what you get:
history | awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head
It'll be interesting to see what most people spend their time with.
this is what I get for my user:
83 ssh
51 ls
44 ec2-describe-instances
44 cd
40 sudo
20 ec2-run-instances
17 ec2-terminate-instances
15 ping
15 ifconfig
15 ec2-describe-images
http://www.oreillynet.com/onlamp/blog/2003/07/oscon_2003_day...