How can I install a local gem?

Question

If I download a .gem file to a folder in my computer, can I install it later using gem install?

Answer 1

If you create your gems with bundler:

# do this in the proper directory
bundle gem foobar

You can install them with rake after they are written:

# cd into your gem directory
rake install

Chances are, that your downloaded gem will know rake install, too.