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????????DNS????ttl?IP????????????????

??????????

???????bash?????????????????????????

#!/bin/bashdeclare -a arra="www.baidu.com A 300 192.168.1.1"for i in $(echo "$a" | awk '{print $3,$4}') do    arr[index]=$i    ((index++))doneecho "ttl: ${arr[0]}"echo "ip address: ${arr[1]}"

????????????????

??????eval??

??????eval??????????????????????????

#!/bin/bashb=""c=""eval "$(echo "$a" | awk '{ printf("b=%s;c=%s",$3,$4)}')"echo "$b"echo "$c"

????????????ttl?IP?????

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