diff -rau examples.orig/advanced/adventure/adventuremuc.rb examples/advanced/adventure/adventuremuc.rb
--- examples.orig/advanced/adventure/adventuremuc.rb	2010-01-26 13:48:13.000000000 +0000
+++ examples/advanced/adventure/adventuremuc.rb	2010-01-26 13:49:18.000000000 +0000
@@ -1,3 +1,5 @@
+#!/usr/bin/env ruby
+
 require 'world'
 
 class AdventureMUC
diff -rau examples.orig/advanced/adventure/world.rb examples/advanced/adventure/world.rb
--- examples.orig/advanced/adventure/world.rb	2010-01-26 13:48:13.000000000 +0000
+++ examples/advanced/adventure/world.rb	2010-01-26 13:48:52.000000000 +0000
@@ -1,3 +1,5 @@
+#!/usr/bin/env ruby
+
 require 'rexml/document'
 
 class World < REXML::Element
diff -rau examples.orig/advanced/sendfile.rb examples/advanced/sendfile.rb
--- examples.orig/advanced/sendfile.rb	2010-01-26 13:48:13.000000000 +0000
+++ examples/advanced/sendfile.rb	2010-01-26 13:48:58.000000000 +0000
@@ -1,3 +1,5 @@
+#!/usr/bin/env ruby
+
 require 'xmpp4r'
 require 'xmpp4r/bytestreams'
 require 'yaml'
diff -rau examples.orig/advanced/shellmgr/shellmgr.rb examples/advanced/shellmgr/shellmgr.rb
--- examples.orig/advanced/shellmgr/shellmgr.rb	2010-01-26 13:48:13.000000000 +0000
+++ examples/advanced/shellmgr/shellmgr.rb	2010-01-26 13:49:04.000000000 +0000
@@ -1,3 +1,5 @@
+#!/usr/bin/env ruby
+
 require 'thread'
 
 class Shell
diff -rau examples.orig/basic/muc_owner_config.rb examples/basic/muc_owner_config.rb
--- examples.orig/basic/muc_owner_config.rb	2010-01-26 13:48:13.000000000 +0000
+++ examples/basic/muc_owner_config.rb	2010-01-26 13:49:12.000000000 +0000
@@ -1,3 +1,5 @@
+#!/usr/bin/env ruby
+
 require 'xmpp4r'
 require 'xmpp4r/muc'