ANY metatype for DNS queries is being phased out, so here is the reimplementation of "dig -t any domain.tld"

digany.sh

#! /bin/bash

# new DNS specification RFC8482 states that DNS servers do not need to respond to ANY metatype
# and can return NOTIMP (not implemented) response for such query. Many of us however, used
# `dig -t any domain.tld` command
# for various debugging purposes. Since more and more servers will be refusing such queries,
# the alternative is to query servers "manually" for every possible record type.

domain="$1"

# https://en.wikipedia.org/wiki/List_of_DNS_record_types
recordTypesList=("A" "AAAA" "AFSDB" "APL" "CAA" "CDNSKEY" "CDS" "CERT" "CNAME" "DHCID" "DLV" "DNAME" "DNSKEY" "DS" "HIP" "IPSECKEY" "KEY" "KX" "LOC" "MX" "NAPTR" "NS" "NSEC" "NSEC3" "NSEC3PARAM" "OPENPGPKEY" "PTR" "RRSIG" "RP" "SIG" "SMIMEA" "SOA" "SRV" "SSHFP" "TA" "TKEY" "TLSA" "TSIG" "TXT" "URI")


for recordType in ${recordTypesList[@]}; do
    dig @8.8.8.8 +noall +answer +multiline -t $recordType $domain &
done | awk '!x[$0]++'
# awk '!x[$0]++' removes duplicated lines (querying dns for "exotic" record types may yield an
#                answer for CNAME instead, so we try to filter out such responses for better readability)