diff --git a/lock_unlock_bashrc.sh b/lock_unlock_bashrc.sh
new file mode 100644
index 0000000..fd22f25
--- /dev/null
+++ b/lock_unlock_bashrc.sh
@@ -0,0 +1,55 @@
+ende=nein
+
+while [ $ende = "nein" ]; do
+echo
+echo
+echo "1 = LOCK"
+echo " "
+echo "2 = UNLOCK und Editieren"
+echo "22= UNLOCK und Ende"
+echo " "
+echo "3 = .bashrc neu einlesen"
+echo " "
+echo "0 = Ende"
+echo
+read -p "Deine Wahl: 1/2/3/0  " wwahl
+
+if [ $wwahl = 1 ]
+then
+        sudo chattr +i .bashrc
+        echo "Gesichert!       "$?
+fi 
+
+if [ $wwahl = 2 ]
+then
+        sudo chattr -i .bashrc
+        echo "Geöffnet!        "$?
+        echo "öffne Datei..."
+        nano .bashrc
+        echo "Datei geschlossen    "$?
+        sudo chattr +i .bashrc
+        echo "Gesichert            "$?
+        source /home/oberkoetter/.bashrc
+        echo "Änderungen sind nach dem Neustart der"
+        echo "Konsole wirksam"
+fi
+
+if [ $wwahl = 22 ]
+then
+        sudo chattr -i .bashrc
+        echo "Geöffnet!        "$?
+        exit 0
+fi
+
+if [ $wwahl = "3" ]
+then
+        . .bashrc
+        echo $?
+fi
+
+if [ $wwahl = "0" ]
+then
+        ende="ja"
+fi
+
+done