My output from history|awk '{a[$2]++ } END{for(i in a){print a[i] ” ” i}}’|sort -rn.
58 dir
49 cd
44 svn
40 ssh
25 cat
21 sudo
21 make
18 telnet
18 svnmerge
18 rgrep
18 man
18 cvs
17 svndiff
14 scp
9 grep
8 route
7 kate
7 ifdata
6 kdesu
6 echo
5 ping
5 less
I’m ashamed that sudo is so far up there, but I just upgraded this box to Hardy and it took a bit of package juggling (proprietary video, VMware, etc.).