I don't use the RI or RDoc output from the gems I install in my machine or in the servers I handle (I use other means of documentation). Every gem I install installs RI and RDoc documentation by.

If you don't want to install RI (Ruby Interactive) and RDoc (Ruby Documentation) output when installing gems, you can use the --no-document flag with the gem install command. This flag prevents the installation of RI and RDoc documentation for the installed gems. Here's how you can use it:

gem install your_gem_name --no-document

Replace your_gem_name with the name of the gem you're installing.

For example, if you're installing the nokogiri gem without RI and RDoc documentation, you would use:

gem install nokogiri --no-document

This will install the gem without generating and installing the RI and RDoc documentation.

Keep in mind that the actual behavior of gem installations might vary depending on your Ruby environment and the gem version. Always refer to the latest documentation or help information for accurate instructions.