bash - Unix script to resolve hostnames from IP addresses -


i've got text file bunch of ipv4 addresses, , i'd know hostname of each 1 in order know if tor addresses. there simple script can me ?

you can loop using dig:

#!/bin/bash  while read line     dig -x "$line" +short done

then given ips 1 per line, can run ./reverse.sh < addrs.txt.

caveats: dns not 1-to-1 mapping, , reverse dns less reliable forward dns.


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