bundle-show man page
bundle-show — Shows all the gems in your bundle, or the path to a gem
bundle show [GEM] [--paths]
Without the [GEM] option, show will print a list of the names and versions of all gems that are required by your Gemfile(5).
Calling show with [GEM] will list the exact location of that gem on your machine.
List the paths of all gems that are required by your Gemfile(5).