diff --git a/etcs/hostapd/gen_ssid.sh b/etcs/hostapd/gen_ssid.sh
new file mode 100644
index 0000000..2870b3a
--- /dev/null
+++ b/etcs/hostapd/gen_ssid.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+# gen_ssid.sh
+ssid=`ip link | awk '/wlan0/ {getline; print $2}' | awk -v FS=':' '{printf("TeraHz_%s%s%s\n", $4, $5, $6)}'`
+sed "/ssid=.*/s/ssid=.*/ssid=$ssid/" hostapd.conf