>This seems to be some sort of trend at Planet GNOME.
history|awk '{a[$2]++ } END{for(i in a){print a[i] " " i}}'|sort -rn|head
96 ls
89 cd
78 make
33 rm
23 wget
22 grep
19 mv
16 sudo
16 kate
15 tar
What does it tell you? I tend to move about and look for files, make stuff, remove files, download things, search for strings using grep (preferably followed by some sed magic and xargs to open kate with the relevant files). Finally, I edit using Kate and build daily deliveries using tar.