Linux下批量ping ip地址

```powershell
#!/bin/bash


aa=(196.168.1.1 196.168.1.2 196.168.1.3)
for ip in ${aa[@]}
do
              ping -c2 $ip   ##发送2个包测试
       if [ $? = 0 ]; then
              echo $ip >> ok.txt
       else
              echo $ip >> error.txt
       fi

done
exit 0