Index: scripts/wifi_read_gateway.sh
===================================================================
diff -u -r2085962f7bd0a2239ee5c857928a11d5e38fe0a2 -r0629dfe6bcc3e85047319284fa4c534efbf58594
--- scripts/wifi_read_gateway.sh	(.../wifi_read_gateway.sh)	(revision 2085962f7bd0a2239ee5c857928a11d5e38fe0a2)
+++ scripts/wifi_read_gateway.sh	(.../wifi_read_gateway.sh)	(revision 0629dfe6bcc3e85047319284fa4c534efbf58594)
@@ -1,2 +1,8 @@
 #!/bin/sh
+
+if [ "$1" == "-h" ]; then
+    currentFile=$(basename "$0")
+    echo "Usage: ./$currentFile"
+    exit 0
+fi
 ip route show | grep "default via"