To create a gemset we need to create a .rvmrc file.

Syntax:

$ rvm --rvmrc --create <ruby-version>@<gemsetname>

Example:

$ rvm --rvmrc --create ruby-2.2.2@myblog

The above line will create a .rvmrc file in the root directory of the app.

To get the list of available gemsets, use the following command:

$ rvm list gemsets