Added netupdate script

ADMIN/netupdate

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+# Update A2osX over the Internet
+# Bobbi 2021
+
+if [ $# -ne 1 ]
+  echo usage: update <buildnum>
+  exit
+fi
+if [ -d ${ROOT}root/updates ]
+else
+  mkdir ${ROOT}root/updates
+fi
+echo Requesting A2osX build $1
+httpget update.a2osx.net -U update.$1 -o ${ROOT}root/updates/update.$1
+cd ${ROOT}
+unpak root/updates/update.$1
+