What is interesting is that compared to the older history, git has replaced svn, pip has replaced easy_install, and virtualenv has now completely subsumed buildout. Oh, how the mighty have fallen!
$ history | awk '{a[$2]++ } END{for(i in a){print a[i] " " i}}'|sort -rn |head -n 20
209 git
123 python
34 ls
31 mate
18 cd
14 pwd
9 hg
8 touch
7 rm
6 cp
5 pip
5 mv
5 django-admin.py
4 mkvirtualenv
3 mysql
3 mkdir
3 bash
2 deactivate
2 add2virtualenv
1 workon