added blocks example and gitignore

.gitignore

@@ -0,0 +1 @@
+*.log

blocks.rb

@@ -0,0 +1,8 @@
+# read file and write to archive  
+File.open("archive.log", "a") do |saved|  
+    File.foreach("mylogfile.log") do |sending|  
+        puts("data = #{sending}")  
+        # Make sure we keep a backup  
+        saved.puts(sending) # removed superfluous string interpolation  
+    end  
+end