Ruby On Rails - Where to gems actually go

Question

When I do sudo gem install XYZ where does that code actually go? Are gems written in ruby on another language?

When I do bundle install, what does that do? I read throug

Answer 1

The command

bundle install

installs the gems listed in your Gemfile. If you are installing gems using bundle, you can type

bundle show 

to see the directory that it is installed in. If I were you I'd navigate to one of those directories and view the code -- it's usually ruby code (but can sometimes involve C). (Look in the 'lib' subdir first -- that's where most of the code usually is).