diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 0369412..9f484c7 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -13,28 +13,6 @@ class ApplicationController < ActionController::Base
         end
     end
 
-    def get_df
-        df = Array.new
-        df_each = Hash.new
-        command = String.new
-        command << "df -hP"
-        puts command
-        output = `#{command}`.split("\n")
-        output.each do |t|
-            next if t.equal? output.first
-            s = t.split(' ')
-            df_each['Filesystem'] = s[0]
-            df_each['Size'] = s[1]
-            df_each['Used'] = s[2]
-            df_each['Avail'] = s[3]
-            df_each['Use%'] = s[4]
-            df_each['Mounted on'] = s[5]
-            df << df_each
-            df_each = Hash.new
-        end
-        return df
-    end
-
     def chdir
         @current_dir = params[:next_dir]
         puts "current_dir : " + @current_dir
@@ -51,7 +29,7 @@ class ApplicationController < ActionController::Base
         command = String.new
         command << "sudo rm -rf #{file_name}"
         puts command
-         `#{command}`
+        `#{command}`
     end
 
 end
diff --git a/app/views/home/index.html.erb b/app/views/home/index.html.erb
index 20b8d9c..d402bd6 100644
--- a/app/views/home/index.html.erb
+++ b/app/views/home/index.html.erb
@@ -299,7 +299,6 @@ function draw_chart(du){
 
 $(document).ready(function() {
 	$('#file_manager_table').dataTable( {
-		"bFilter": false,
 		"bSort": false
 	});
 
@@ -358,7 +357,6 @@ $(document).on("click", "#file_manager_div .chdir", function(){
 			$("#disk_usage_div").append(result.disk_usage_table);
 
 			$('#file_manager_table').dataTable( {
-				"processing" : true,  // show indicator
 				"bSort": false
 			});
 			draw_chart(result.du);
@@ -387,14 +385,13 @@ $(document).on("click", "#file_manager_div .chupper", function(){
 			$("#disk_usage_div").append(result.disk_usage_table);
 
 			$('#file_manager_table').dataTable( {
-				"processing" : true,  // show indicator
 				"bSort": false
 			});
 			draw_chart(result.du);
 		}
 	})
 })
-
+// remove directory
 $(document).on("click", "#file_manager_div .rmdir", function(){
 	var file_name = $(this).text().trim();
 	var current_dir = $("#file_manager_div span").text().trim();
@@ -411,10 +408,13 @@ $(document).on("click", "#file_manager_div .rmdir", function(){
 				$("#file_manager_div").append(result.file_manager_table);
 				$("#disk_usage_div").append(result.disk_usage_table);
 
-				$('#file_manager_table').dataTable( {"bSort": false});
+				$('#file_manager_table').dataTable( {
+					"bSort": false
+				});
 				draw_chart(result.du);
 			}
 		})
 	}
 })
 </script>
+<!-- /File manager functions -->