Resolve Domains to CSV

Resolves a domain list with dnsx and formats the output into a deduplicated ip,domain CSV.

cat INFILE | dnsx -rl 15 -silent -or -j -o OUTPUTFILE | jq "{a: .a[]?, host}" | tr -d '\n' | tr '}' '\n' | tr 'A-Z' 'a-z' | cut -d '"' -f 4,8 | tr '"' ',' | sort -u