How do I make Ruby 1.9 the default Ruby on Ubuntu?
I'm not really sure, but maybe this can help:
update-alternatives --config ruby... and here's the non-interactive, scriptable, way:
update-alternatives --set ruby /usr/bin/ruby1.9.1You may find out about available alternatives and respective /usr/bin/... paths by doing:
update-alternatives --query ruby
Martin - Take a look at the following link: http://ryanbigg.com/2010/12/ubuntu-ruby-rvm-rails-and-you/
This is where installation of ruby is heading for ubuntu servers. This should allow you to not only switch to a ruby version when needed, but also keep gems separated based on ruby versions, etc.