I'm a newbies for ruby and need some help for installation blocker.
I have my ruby installed "ruby 1.9.2dev (2010-07-11 revision 28613)
And then I install the rails
sudo gem install rails --pre
but when I do rails -v, it shows
[ Note: I've installed 2.3.8 few days ago. And today I tried to
install the latest version. ]
So how I can use the latest version instead of the version I installed
few days ago??