How to update ruby on linux (ubuntu)?

Question

I\'m newbie on both ruby and linux, so I\'m sure this is trivial but I don\'t know yet. I currently have ruby 1.8.7 installed and I want to update it to ruby 1.9. How can I do t

Answer 1

sudo apt-get install ruby1.9

should do the trick.

You can find what libraries are available to install by

apt-cache search 

So I just did apt-cache search ruby | grep 9 to find it.

You'll probably need to invoke the new Ruby as ruby1.9, because Ubuntu will probably default to 1.8 if you just type ruby.