nginx启动脚本

#!/bin/bash
WORK_DIR=/data/nginx
COMM_DIR=$WORK_DIR/sbin/nginx
NAME=nginx
PID=$WORK_DIR/logs/nginx.pid


start() {
if [ -f $PID ];
then
    echo "nginx is running"
else
$COMM_DIR
   if [ -f $PID ];
     then
        echo "nginx is started"
        exit 0
      else
        echo "nginx start is bad"
        exit 1
  fi
fi

}

stop() {
if [ -f $PID ];
  then
    $COMM_DIR -s stop
    echo "nginx is stoped"
  else
    echo "nginx: [error] open() "/data/nginx/logs/nginx.pid" failed (2: No such file or directory)"
    exit 1
fi
       

}

restart() {
if [ ! -f $PID ];
  then
    echo "nginx: [error] open() "/data/nginx/logs/nginx.pid" failed (2: No such file or directory)"
  else
     $COMM_DIR -s stop
     sleep 3
     $COMM_DIR
fi
}


reload() {
if [ ! -f $PID ];
  then
    echo "nginx: [error] open() "/data/nginx/logs/nginx.pid" failed (2: No such file or directory)"
  else
     $COMM_DIR -s reload
fi
}

chk() {
if [ ! -f $PID ]
  then
     echo "nginx: [error] open() "/data/nginx/logs/nginx.pid" failed (2: No such file or directory"
  else
    $COMM_DIR -t
fi
}


case $1 in
start)
    start
;;
stop)
    stop
;;
restart)
    restart
;;
reload)
     reload

;;
chk)
   chk
;;
*)
echo "Usage:$0 {start|stop|restart|reload|ehk}"
;;
esac