There are a lot of shell history Meme in Fedora People today. As usual, I always want to join the crowd 
azhari@gabriel:~> history | awk '{a[$2]++ } END{for (i in a) {print a[i] ” ” i}}'| sort -rn | head
37 ls
35 cd
16 clear
14 sudo
12 ps
12 mplayer
9 youtube-dl
7 killall
6 top
5 rm
azhari@gabriel:~>
There you go
