How, using a while loop, the dig command to display the A-records of the domain in the ips.txt file, after which, on the next line, the PTR-record of the IP?

Question

bash

Started writing the script:

#!/bin/bash
dig google.com +noall +answer +short >> ips.txt
dig -x -f ips.txt +short >> ips2.txt

But it is not possible to use the -f switch for dig .
If you manually insert ip
dig -x 64.233.165.138 +short >> ips2.txt
, then there is no problem. And the list doesn't work.
And it's not clear yet how to use the while command in this script.
Thanks in advance for any help, otherwise Google will ban me soon, for ddos

Answer 1

quotes "

Answer 2

#!/bin/bash
IP=$(dig ${1} +noall +answer +short)
echo ${IP} >> ips.txt
dig -x ${IP} +short >> ips2.txt

and run
./myscript.sh google.com