DNS部署（3）---------源码b

#/bin/bash
#chkconfig 2345 70 50
#description named
#author joe
[ -r /etc/init.d/functions ] && . /etc/init.d/functions
//判断functions库函数是否可读
Pidfile="/usr/local/bind9/var/run/named.pid"//默认pid路路径
Lockfile="/var/lock/subsys/named"//脚本锁文件
named="named"//服务
start() {
[ -x "/usr/local/bind9/sbin/$named" ] || exit 4
if [ -f $Lockfile ];then
echo  "the $named is already running"
exit 5
fi
echo -n "starting $named "
daemon --pidfile "$Pidfile"  /usr/local/bind9/sbin/$named -u named -4
RETAVL=$?
echo
if [ $RETAVL -eq 0 ];then
touch $Lockfile
return 0
else
rm -f $Lockfile $Pidfile
return 1
fi
}
stop(){
if [ ! -f $Lockfile ];then
echo "the $named is stopped.... "
exit 5
fi
echo -n "stopping the $named.."
killproc $named
RETAVL=$?
echo
if [ $RETAVL -eq 0 ];then
rm -f $Lockfile
fi
}
reload(){
if [ ! -f $Lockfile ];then
echo "the $named is stopped "
exit 5
fi
echo -n "reload the config file"
killproc $named -HUP
RETAVL=$?
echo
}
status(){
if pidof $named &>/dev/null && [ -f $Pidfile ];then
echo "the $named is starting"
else
echo "the $named is stopped"
fi
}
case $1 in
start)
start
;;
stop)
stop
;;
reload)
reload
;;
restart)
stop
sleep 1
start
;;
status)
status
;;
*)
echo "Usage:||"
;;
esac