dig-all/dig-all

#!/bin/sh

QUERY="$1"
RECORD="$2"
RESOLVER_FILE="$3"

if [ -z "$QUERY" ] || [ -z "$RECORD" ] || [ -z "$RESOLVER_FILE" ]; then
  echo "Usage: $0 <query-type> <query-record> <resolver-filename>"
  exit 1
fi

while read p; do
  echo "** Resolver: $p **"
  dig "$QUERY" +short "$RECORD" @$p
done <"$RESOLVER_FILE"