gem environment gemdir

gem environment gemdir
/var/lib/gems/2.7.0                                                                                         

gem environment gemdir                                                                                                                                                                                    
Command 'gem' not found, but can be installed with:
apt install ruby

See also

• RubyGems, gem, gemfile, .gemspecs, gem install, gem environment, gem --help
• Ruby, Sinatra, Ruby on rails, RubyGems, gem, bundle, Rack, Gemfile, Keg-only, brew install [email protected], bundle, JRuby, CocoaPods, apt install ruby, Fog, Puma