Index: scripts/wifi_set_auto_assigned_ip.sh
===================================================================
diff -u -r5600d2133dd0ea6dc1f733aa78bd26e2a4892a38 -r0629dfe6bcc3e85047319284fa4c534efbf58594
--- scripts/wifi_set_auto_assigned_ip.sh	(.../wifi_set_auto_assigned_ip.sh)	(revision 5600d2133dd0ea6dc1f733aa78bd26e2a4892a38)
+++ scripts/wifi_set_auto_assigned_ip.sh	(.../wifi_set_auto_assigned_ip.sh)	(revision 0629dfe6bcc3e85047319284fa4c534efbf58594)
@@ -1,5 +1,13 @@
 #!/bin/sh
+
+if [ $# -eq 0 ]; then
+    currentFile=$(basename "$0")
+    echo "Usage: ./$currentFile <iface>"
+    exit 0
+fi
+
 iface=$1
 
 echo "auto $iface
 iface $iface inet dhcp" >> /etc/network/interfaces
+touch AUTO_IP