测试数据库连接的Shell脚本

为了开机时以普通用户自动启动测试程序，并且以后每天测试一遍，再编写以下两个脚本。
第一个脚本：
# /home/mishuang/bin/start-stop

PID_FILE=/tmp/monitor.pid

case "$1" in
        start)
                if [ -f $PID_FILE ]
                then
                        echo "monitor already started!"
                        exit 1
                fi
                echo $$ > $PID_FILE
                while true
                do
                        seconds=$((24*60*60))
                        sleep $seconds
                        /home/mishuang/bin/monitor
                done
                ;;
        stop)
                if [ -f $PID_FILE ]
                then
                        pid=`cat $PID_FILE`
                        kill -9 $pid
                        echo "remove pid file"
                        rm -f $PID_FILE
                else
                        echo "monitor already terminated!"
                fi
                ;;
        restart)
                $0 stop
                sleep 1
                $0 start
                ;;
        *)
                printf "Usage: $0 {start|stop|restart}\n" >&2
                exit 1
                ;;
esac
exit 0

第二个脚本：
# /etc/init.d/monitor

case "$1" in
  start)
    su - mishuang /home/mishuang/bin/start-stop start &
    ;;
  stop)
    su - mishuang /home/mishuang/bin/start-stop stop
    ;;
  restart)
    $0 stop
    sleep 1
    $0 start
    ;;
  *)
    printf "Usage: $0 {start|stop|restart}\n" >&2
    exit 1
    ;;
esac
exit 0

最后chkconfig monitor on