ordered into /lib

put all subscripts into lib for readability

lib/lan.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+function LAN_CABLE(){
+	for iface in /sys/class/net/*; do
+    		iface_name=$(basename "$iface")
+		if [[ "$iface_name" == "lo" ]]; then
+        		continue
+    		fi
+
+		if [[ "${iface_name:0:2}" == "wl" ]]; then
+        		continue
+    		fi
+
+
+		if [[ -f "$iface/carrier" ]]; then
+        		carrier=$(cat "$iface/carrier")
+
+        		if [[ "$carrier" == "1" ]]; then
+            			echo "Bitte LAN Kabel entfernen"
+	    			read -n 1 -s -r -p "Any key to continue"
+            			return 0
+        		fi
+    		fi
+	done
+	echo "LAN cable is NOT connected"
+	return 1
+}