Copying gems from previous version of Ruby in rbenv

Question

I installed Ruby 1.9.3-p286 with rbenv. Now, after installing a newer version (p327), obviously, it doesn\'t know anything about the GEMs installed with the previous version

Answer 1

You can copy the gems/ and bin/ folders, but this will lead to problems. The files in bin/ have hardcoded paths in them.

I'd recommend reinstalling them, which would be as easy as this:

$ rbenv local 1.9.3-p286
$ gem list | cut -d" " -f1 > my-gems
$ rbenv local 1.9.3-p327
$ gem install $(cat my-gems)