diff --git a/src/TextLogik.java b/src/TextLogik.java
index aea3198..3d6ab4f 100644
--- a/src/TextLogik.java
+++ b/src/TextLogik.java
@@ -27,7 +27,15 @@ public class TextLogik {
 
                     break;
                 case "DEL":
-                    // TODO Hier Delete Funktion hinzufügen.
+                    if (command.length == 1){
+                        text.del(TextInput.checkForInput().length);
+                    }else if (isNumeric(command[1])){
+                        int line = Integer.parseInt(command[1]);
+
+                        text.del(line, text.size () - 1);
+                    }else {
+                        textOutput.errorInvalidCommand();
+                    }
                     break;
                 case "Dummy":
                     text.dummy();
@@ -53,6 +61,16 @@ public class TextLogik {
 
                     break;
                 case "REPLACE":
+                    if (command.length == 1){
+                        text.replace(TextInput.getTextInput());
+                    }else if(isNumeric(command[1])) {
+                        int line = Integer.parseInt(command[1]);
+
+                        text.replace(line, text.size() - 1);
+                    }else {
+                        textOutput.errorInvalidCommand();
+                    }
+                }
                     break;
                 default:
                     System.out.println("Command not found. Try again");