diff --git a/src/util/mdadmupdateconf.cpp b/src/util/mdadmupdateconf.cpp
index a8fce70..f61aa86 100644
--- a/src/util/mdadmupdateconf.cpp
+++ b/src/util/mdadmupdateconf.cpp
@@ -1,26 +1,49 @@
+/*************************************************************************
+ *  Copyright (C) 2019 by Caio Carvalho <caiojcarvalho@gmail.com>        *
+ *                                                                       *
+ *  This program is free software; you can redistribute it and/or        *
+ *  modify it under the terms of the GNU General Public License as       *
+ *  published by the Free Software Foundation; either version 3 of       *
+ *  the License, or (at your option) any later version.                  *
+ *                                                                       *
+ *  This program is distributed in the hope that it will be useful,      *
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of       *
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
+ *  GNU General Public License for more details.                         *
+ *                                                                       *
+ *  You should have received a copy of the GNU General Public License    *
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.*
+ *************************************************************************/
+
 #include <cstdlib>
 #include <string>
-#include <iostream>
-
-using namespace std;
 
 using std::string;
+using std::system;
+
+/* 
+ *  Use this helper application to append content in the software raid configuration file or to rewrite it.
+ *  Only rewrite if you want to replace *ALL* data.
+ *
+ *  HOWTO:
+ *      kpmcore_mdadmupdateconf --append [path] [raid configuration file path]
+ *      kpmcore_mdadmupdateconf --write [path] [raid configuration file path]
+ * 
+*/ 
 
 int main(int argc, char *argv[])
 {
     if (argc != 4)
         return 1;
+    
+    string command = "";
 
-    if (string(argv[1]) == "--append") {
-        string command = "mdadm --detail --scan " + string(argv[2]) + " >> " + string(argv[3]);
-
-        system(command.c_str());
-    }
-    else if (string(argv[1]) == "--write") {
-        string command = "echo " + string(argv[2]) + " > " + string(argv[3]);
-
-        system(command.c_str());
-    }
+    if (string(argv[1]) == "--append")
+        command = "mdadm --detail --scan " + string(argv[2]) + " >> " + string(argv[3]);
+    else if (string(argv[1]) == "--write")
+        command = "echo " + string(argv[2]) + " > " + string(argv[3]);
+    else
+        return 1;
 
-    return 0;
+    return command != "" ? system(command.c_str()) : 1;
 }