对于shell中for中断循环的问题

#!/bin/bash

cd /root/cron/;
rm -rf login.php*;
echo "-------循环执行开始：" ;
for i in `/bin/cat /usr/local/nginx/conf/nginx.conf |grep "server_name\ " |awk '{print $2}'|awk -F ";" '{ print $1 }'`
  do {
  /usr/bin/wget http://$i/login.php?mod=cs\&act=getone > /dev/null 2>&1 ;
  }
done