update package install script to add shutdown script

source/shellinabox-plugin/install/doinst.sh

@@ -1 +1,14 @@
 #!/bin/sh
+RC_SCRIPT="/etc/rc.d/rc.shellinaboxd shutdown"
+SD_RCFILE="/etc/rc.d/rc.local_shutdown"
+
+# Update file permissions of scripts
+chmod +0755 /usr/local/emhttp/plugins/shellinabox-plugin/scripts/* \
+	/etc/rc.d/rc.shellinaboxd \
+	/usr/local/bin/screenfetch
+
+# add stop to shutdown script	
+if ! grep "$RC_SCRIPT" $SD_RCFILE >/dev/null 2>&1
+	then echo -e "\n[ -x $RC_SCRIPT ] && $RC_SCRIPT" >> $SD_RCFILE
+fi
+[ ! -x $SD_RCFILE ] && chmod u+x $SD_RCFILE