diff --git a/.gitignore b/.gitignore
index 3da35b17e..3fad9b672 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,7 +13,6 @@
 **/.terraform/
 **/inspec.lock
 **/terraform.tfstate
-bin/
 build/
 certs/gem-private_key.pem
 coverage/
@@ -26,4 +25,5 @@ terraform.tfstate.d/
 test/terraform/Plug Ins/Plug In Directory/
 tmp/
 vendor/
-/.bundle
\ No newline at end of file
+/.bundle
+
diff --git a/bin/list-undocumented-objects.sh b/bin/list-undocumented-objects.sh
new file mode 100755
index 000000000..e4cd1839d
--- /dev/null
+++ b/bin/list-undocumented-objects.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -e
+bundle exec yard stats --list-undoc
+
diff --git a/bin/switch-ruby-version.sh b/bin/switch-ruby-version.sh
new file mode 100755
index 000000000..07a796b89
--- /dev/null
+++ b/bin/switch-ruby-version.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+set -e
+source /usr/local/share/chruby/chruby.sh
+chruby $1
+if [ -e .bundle/config ]
+then
+  rm .bundle/config
+fi
+bundle config --local gemfile $1/Gemfile
+
diff --git a/bin/update-development-gems.sh b/bin/update-development-gems.sh
new file mode 100755
index 000000000..a9c4169be
--- /dev/null
+++ b/bin/update-development-gems.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+set -e
+source /usr/local/share/chruby/chruby.sh
+echo ruby-2.6
+chruby ruby-2.6
+set -x
+gem update --system
+gem install --version="~> 2.0" bundler
+gem install debride fasterer rcodetools fastri reek
+
diff --git a/bin/update-gemfile-locks.sh b/bin/update-gemfile-locks.sh
new file mode 100755
index 000000000..7eaa5d02d
--- /dev/null
+++ b/bin/update-gemfile-locks.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+set -e
+source /usr/local/share/chruby/chruby.sh
+set +x
+for RUBY in ruby-2.6 ruby-2.5 ruby-2.4 ruby-2.3
+do
+  chruby "$RUBY"
+  ruby --version
+  set -x
+  if [ -e "$RUBY"/Gemfile.lock ]
+  then
+    bundle update --gemfile "$RUBY"/Gemfile
+  else
+    bundle install --gemfile "$RUBY"/Gemfile
+  fi
+  set +x
+done
+