dnssec-dsfromkey: invalid argument --
Usage:
    dnssec-dsfromkey [options] keyfile

    dnssec-dsfromkey [options] -f zonefile [zonename]

    dnssec-dsfromkey [options] -s dnsname

    dnssec-dsfromkey [-h|-V]

Version: 9.20.30
Options:
    -1: digest algorithm SHA-1 (deprecated)
    -2: digest algorithm SHA-256
    -a algorithm: digest algorithm (SHA-1 (deprecated), SHA-256 or SHA-384)
    -A: include all keys in DS set, not just KSKs (-f only)
    -c class: rdata class for DS set (default IN) (-f or -s only)
    -C: print CDS records
    -f zonefile: read keys from a zone file
    -h: print help information
    -K directory: where to find key or keyset files
    -w split base64 rdata text into chunks
    -s: read keys from keyset-<dnsname> file
    -T: TTL of output records (omitted by default)
    -v level: verbosity
    -V: print version information
Output: DS or CDS RRs