/etc/shadow : how to generate $6$ 's encrypted password?

In /etc/shadow file there are encrypted password. Encrypted password is no longer crypt(3) or md5 "type 1" format. (according to this previous answer ) Now I have a $6$somesalt$someveryverylongencryptedpasswd as entry. I can no longer use openssl passwd -1 -salt salt hello-world $1$salt$pJUW3ztI6C1N/anHwD6MB0 to generate encrypted passwd. Any equivalent like (non existing) .. ? openssl passwd -6 -salt salt hello-world