Where do gems install?
I'm trying to edit one of the gem's config files and I can't find it. I'm not sure how I did this in the past.
Look at your gem environment.
In a terminal run gem env
You should see an entry INSTALLATION DIRECTORY, but there is also GEM PATHS which is where it's loading all your gems from in your current environment.
Rvm
$ rvm gemdir
Or you can check:
echo $GEM_HOME
Bundler
$ bundle show --paths
For specific gem:
$ bundle show 'gem_name'
Gem
$ gem env
For specific gem:
$ gem which 'gem_name'