Hello guys, I'm trying to update my Ruby version 1.8.6 to 1.9.0 following http://hivelogic.com/articles/ruby-r...rel-mysql-osx/ as I did when I installed 1.8.6

I followed all the steps and all looked like good but, after the installation, when I checked out the installed version
ruby -v
The result was

ruby 1.8.6 (2007-09-24 patchlevel 111) [universal-darwin9.0]

I guess I have both versions installed right now but the working one is still 1.8.6 How can I check this out and if it is true move the working version to 1.9.0 ???

Otherwise How can I uninstall 1.8.6 (and 1.9.0) ??? In this case I will reinstall 1.9.0.

Thank you and have a nice day
I appreciate your help