cat while_ip.txt
server1 114.114.114.114
server2 192.168.1.1
server2 www.baidu.com

cat while_ip.sh

#! /bin/bash

while read hostname ip; do
ping c1 W1 "${ip}" &> /dev/null
[ $? -eq 0 ] && echo -e "${hostname}在线" || echo -e "${hostname}不在线"
done < /home/yang01/桌面/shell/while_ip.txt

sh while_ip.sh

-e server1在线
-e server2在线
-e server2在线