Add 'sb-wg' script

.bin/sb-wg

@@ -0,0 +1,12 @@
+#!/usr/bin/env sh
+
+# Reference: https://github.com/mil-ad/polybar-wireguard
+
+connected_interfaces=$(networkctl | grep -P "\d+ .* wireguard routable" -o | cut -d" " -f2)
+
+if [ -n "$connected_interfaces" ];
+then
+    for interface in $connected_interfaces; do echo "$interface"; done
+else
+    exit 1
+fi