Add Get Info About Your RubyGems Environment as a ruby til

README.md

@@ -10,7 +10,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 For a steady stream of TILs from a variety of rocketeers, checkout
 [til.hashrocket.com](https://til.hashrocket.com/).
 
-_810 TILs and counting..._
+_811 TILs and counting..._
 
 ---
 
@@ -632,6 +632,7 @@ _810 TILs and counting..._
 - [Finding The Source of Ruby Methods](ruby/finding-the-source-of-ruby-methods.md)
 - [Generate A Signed JWT Token](ruby/generate-a-signed-jwt-token.md)
 - [Generate Ruby Version And Gemset Files With RVM](ruby/generate-ruby-version-and-gemset-files-with-rvm.md)
+- [Get Info About Your RubyGems Environment](ruby/get-info-about-your-ruby-gems-environment.md)
 - [Identify Outdated Gems](ruby/identify-outdated-gems.md)
 - [If You Detect None](ruby/if-you-detect-none.md)
 - [Ins And Outs Of Pry](ruby/ins-and-outs-of-pry.md)

ruby/get-info-about-your-ruby-gems-environment.md

@@ -0,0 +1,14 @@
+# Get Info About Your Ruby Gems Environment
+
+Want to know what Ruby version is being used? Or into what directory gems are
+being installed?
+
+```bash
+$ gem environment
+```
+
+This command will answer those questions and give you a whole host of other
+information about your RubyGems environment.
+
+There are more details in their
+[documentation](https://guides.rubygems.org/command-reference/#gem-environment).