diff --git a/bindings/ruby/examples/penv.rb b/bindings/ruby/examples/penv.rb
new file mode 100644
index 00000000..2fb4ef54
--- /dev/null
+++ b/bindings/ruby/examples/penv.rb
@@ -0,0 +1,14 @@
+require 'rbsigar'
+
+def output(sigar, pid)
+  env = sigar.proc_env(pid)
+  env.each do |key, val|
+    puts key + "=" + val
+  end
+end
+
+sigar = Sigar.new
+
+ARGV.each do |pid|
+  output(sigar, pid.to_i)
+end