Content of RPM rubygem-json-2.0.2-2.el7.x86_64.rpm :
/usr/lib64/gems/ruby/json-2.0.2
/usr/lib64/gems/ruby/json-2.0.2/lib
/usr/lib64/gems/ruby/json-2.0.2/lib/json
/usr/lib64/gems/ruby/json-2.0.2/lib/json/ext
/usr/lib64/gems/ruby/json-2.0.2/lib/json/ext/.keep
/usr/lib64/gems/ruby/json-2.0.2/lib/json/ext/generator.so
/usr/lib64/gems/ruby/json-2.0.2/lib/json/ext/parser.so
/usr/share/gems/gems/json-2.0.2
/usr/share/gems/gems/json-2.0.2/README-json-jruby.md
/usr/share/gems/gems/json-2.0.2/README.md
/usr/share/gems/gems/json-2.0.2/lib
/usr/share/gems/gems/json-2.0.2/lib/json
/usr/share/gems/gems/json-2.0.2/lib/json.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add
/usr/share/gems/gems/json-2.0.2/lib/json/add/bigdecimal.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add/complex.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add/core.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add/date.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add/date_time.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add/exception.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add/ostruct.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add/range.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add/rational.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add/regexp.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add/struct.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add/symbol.rb
/usr/share/gems/gems/json-2.0.2/lib/json/add/time.rb
/usr/share/gems/gems/json-2.0.2/lib/json/common.rb
/usr/share/gems/gems/json-2.0.2/lib/json/ext.rb
/usr/share/gems/gems/json-2.0.2/lib/json/generic_object.rb
/usr/share/gems/gems/json-2.0.2/lib/json/version.rb
/usr/share/gems/gems/json-2.0.2/tools
/usr/share/gems/gems/json-2.0.2/tools/diff.sh
/usr/share/gems/gems/json-2.0.2/tools/fuzz.rb
/usr/share/gems/gems/json-2.0.2/tools/server.rb
/usr/share/gems/specifications/json-2.0.2.gemspec