--- scripts/espdiff.in.orig	Wed Jun 11 11:01:28 2008
+++ scripts/espdiff.in	Tue Apr 21 15:07:14 2015
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # espdiff - do whatever it was you wanted
 # Copyright (C) 2003 Tim Waugh <twaugh@redhat.com>
@@ -78,6 +78,7 @@ then
   delay=$(($delay * 2))
 fi
 
-read -t $delay -p 'Please concentrate... ' || echo
+echo -n 'Please concentrate... '
+sleep $delay
 echo 'No brainwave activity detected.  Aborting.'
 exit 1