$ history|awk '{a[$2]++ } END{for(i in a){print a[i] " " i}}'|sort -rn|head
368 cd
355 l
274 git
231 vi
131 u
130 q
101 find
94 time
86 grep
79 svn

Some clarifications:

• “l” is an alias for “ls -lhA --color”
• “u” is an alias for “cd ..”
• “q” is an alias for “exit” (I also use CTRL-D for that)
• “time” is there because I use “time make” to see how much time I need to compile things

This blog post was brought to you by the huge time required to link WebKit (I want gold as the default linker!)