linux (ubuntu) 下设置 tomcat 随系统自动启动

#!/bin/sh
# chkconfig: 345 99 10
# description: Auto-starts tomcat
# /etc/init.d/tomcat
# Tomcat auto-start
# Source function library.
#. /etc/init.d/functions
# source networking configuration.
#. /etc/sysconfig/network
RETVAL=0
export JRE_HOME=/usr/share/jdk1.8/jre
export CATALINA_HOME=/opt/source/apache-tomcat-8.0.21
export CATALINA_BASE=/opt/source/apache-tomcat-8.0.21
start()
{
        if [ -f $CATALINA_HOME/bin/startup.sh ];
          then
            echo $"Starting Tomcat"
                $CATALINA_HOME/bin/startup.sh
            RETVAL=$?
            echo " OK"
            return $RETVAL
        fi
}
stop()
{
        if [ -f $CATALINA_HOME/bin/shutdown.sh ];
          then
            echo $"Stopping Tomcat"
                $CATALINA_HOME/bin/shutdown.sh
            RETVAL=$?
            sleep 1
            ps -fwwu tomcat | grep apache-tomcat|grep -v grep | grep -v PID | awk ‘{print $2}‘|xargs kill -9
            echo " OK"-
            # [ $RETVAL -eq 0 ] && rm -f /var/lock/...
            return $RETVAL
        fi
}

case "$1" in
 start)
        start
        ;;
 stop)
        stop
        ;;

 restart)
         echo $"Restaring Tomcat"
         $0 stop
         sleep 1
         $0 start
         ;;
 *)
        echo $"Usage: $0 {start|stop|restart}"
        exit 1
        ;;
esac
exit $RETVAL