The rbenv Debian package comes with the rbenv-alternatives plugin, which you can use to make the Ruby interpreters installed via APT available for use with rbenv. Example usage: $ rbenv alternatives $ rbenv versions 1.8.7-debian 1.9.2-debian $ rbenv global 1.9.2-debian $ rbenv version 1.9.2-debian (set by /home/terceiro/.rbenv/global) $ ruby -v ruby 1.9.2p290 (2011-07-09 revision 32553) [x86_64-linux] Whenever you install a new Ruby interpreter, or uninstall a previously installed one, just run `rbenv alternatives` again and it will update your list of Debian-provided Ruby interpreters with rbenv. -- Antonio Terceiro Thu, 22 Sep 2011 21:28:52 -0700