linux - Bash 脚本循环遍历列表以检查服务器状态

Question

我正在尝试创建一个脚本，除其他外，该脚本将 ping 列表中的远程服务器。

这就是我所拥有的，但不断出现此错误:

./monitor_sats.sh:无法为命令替换创建管道:打开的文件太多。

这是我的代码，感谢您的帮助。

 #!/bin/bash


 function ping {

   for i in `cat server_list`
   do
     ping -c1 ${i} > /dev/null
       if [ ${?} -eq 0 ]; then
         echo "$(tput setaf 2)ON$(tput sgr0)"
     else
        echo "$(tput setaf 1)OFF$(tput sgr0)"
     fi
   done
}



 echo "AMSTERDAM - Server  $(ping) "
 echo "HONG KONG - Server  $(ping) "
 echo "LONDON    - Server  $(ping) "
 echo "SINGAPORE - Server  $(ping) "

Answer 1

如下更改函数名；

#!/bin/bash
function pingToServer {
  for i in `cat server_list`
   do
    ping -c1 ${i} > /dev/null
       if [ ${?} -eq 0 ]; then
         echo "$(tput setaf 2)ON$(tput sgr0)"
     else
        echo "$(tput setaf 1)OFF$(tput sgr0)"
     fi
   done
}

 echo "AMSTERDAM - Server  $(pingToServer) "
 echo "HONG KONG - Server  $(pingToServer) "
 echo "LONDON    - Server  $(pingToServer) "
 echo "SINGAPORE - Server  $(pingToServer) "

你也可以用这个；

#!/bin/bash
Countries=("AMSTERDAM" "HONG KONG" "LONDON" "SINGAPORE")
counter=0
cat server_list | while read server; 
do
 ping -c1 ${server} > /dev/null
 if [ ${?} -eq 0 ]; then
         echo "${Countries[$counter]} - SERVER- $(tput setaf 2)ON$(tput sgr0)"
     else
         echo "${Countries[$counter]} - SERVER-$(tput setaf 1)OFF$(tput sgr0)"
     fi
    counter=$(($counter+1))
done