在bash中ping一个ls列表

Question

我输出的域名列表如下：

lastdomain=`ls -lah /var/www/vhosts | wc -l`
#the variables below will be used later
IP1=`ifconfig | grep "inet addr" | sed '1 ! d' | awk '{print $2;}' | cut -c 6-19`
IP2=`ifconfig | grep "inet addr" | sed '2 ! d' | awk '{print $2;}' | cut -c 6-19`

LIST=`ls -lah /var/www/vhosts | sed "4,$lastdomain ! d" | awk '{print $9;}' | grep -v 'chroot\|default\|.skel'`

我想ping每一个。 这几乎有效：

for each in $LIST
 do
 echo "Attempting to ping $each..."
  ping -c 1 $LIST > /dev/null 2>&1 #&& break
   if [ "$?" -ne "0" ]; then
    echo "Host $each is not reachable! "
     else
    break
   fi
done

然而他们都返回：

Host exampledomain.com is not reachable!

我究竟做错了什么？

编辑：现在，这是有效的，我需要摆脱以下只是获取IP地址：

PING domain.com (IP.IP.IP.IP) 56(84) bytes of data.
64 bytes from domain.co.uk (IP.IP.IP.IP): icmp_seq=1 ttl=64 time=0.024 ms

--- domain.com ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.024/0.024/0.024/0.000 ms

Answer 1

ping -c 1 $LIST > /dev/null 2>&1 

你可能意味着

ping -c 1 $each > /dev/null 2>&1