Here's the command history on my laptop's Ubuntu 10.04 installation (it's been running for a year and a half now):

$: history|awk '{a[$2]++ } END{for(i in a){print a[i] " " i}}'|sort -rn|head -n 20

1030 cd

833 v

747 git

653 sudo

564 gc

537 vim

531 hdfs

357 ls

343 grep

265 rm

204 tshark

186 cp

182 ack-grep

143 cat

126 ping

114 hg

102 mv

95 find

94 ssh

93 ./waf

"v" is my alias for vim, and "gc" is my alias for "git commit". So here's the somewhat corrected list (I say somewhat because I have even more aliases which I use for git, which I'm not taking into account).

1370 vim

1311 git

1030 cd

653 sudo

531 hdfs

357 ls

343 grep

265 rm

204 tshark

186 cp

182 ack-grep

143 cat

126 ping

114 hg

102 mv

95 find

94 ssh

93 ./waf

I find it surprising that over the 4 months I hacked on KTHFS, the "hdfs" command made it to my top 10 list! Mercurial (hg) and waf are in there thanks to my ns-3 duties.

Oh well, now back to work.