How can I uninstall Ruby on ubuntu?

Question

How can I uninstall Ruby 1.9.2dev (2010-07-02) [i486-linux] on ubuntu? Need to reinstall - please help

Answer 1

If you used rbenv to install it, you can use

rbenv versions 

to see which versions you have installed.

Then, use the uninstall command:

rbenv uninstall [-f|--force] 

for example:

rbenv uninstall 2.4.0  # Uninstall Ruby 2.4.0

If you installed Rails, it will be removed, too.