"svn" is explained because I'm not familiar enough with RADRails in Eclipse and it is really easy to use command line for two word commands anyway :)
"cd" and "ls" are a waste of time... Something to improve here.
"sudo" and "mysql" just say that I run my development environment from the command line. "ruby" on the other hand tells you that with WEBrick reloading the rb files on the fly everytime you change them I don't need to re-start the server to change my web-app! ;)
What does your shell history say about you?
PS: "dir" is a common dyslexia for those of us that have suffered many Windows years...