#!/bin/sh
[ $# -ne 1 ] && exit 1
BIRD=$1
EXC=`mount -t overlayfs | grep overlayfs -c`
[ $EXC > 0 ] && rm -r /etc/init.d/${BIRD} || mv /etc/init.d/${BIRD} /etc/${BIRD}/init.d/${BIRD}.orig
ln -s /etc/${BIRD}/init.d/${BIRD} /etc/init.d/${BIRD}
exit 0