SSH from MikroTik to a Linux server with keys

I have read this chapter of the self-help but I still don’t understand how I can “ssh-copy-id“ the keys from MikroTik to a Linux server in order to ssh from the MikroTik to the Linux server passwordless. It seems to me that the “export” function is missing. Or should I just in some way copy-paste the text of the key ?

I would like the MikroTik to copy files (blacklists for instance) from the server instead of giving writing privilege to the server (which I am doing this far).

I suppose I’m missing something…

I did it. What I did was download the public key from the MikroTik, then convert it through this command

ssh-keygen -i -m PKCS8 -f ~/Téléchargements/WinBox_Linux/assets/admin_rsa_pub.pem > admin.pub

Where -i means import to the ssh format and -m PKCS8 is the format of the MikroTik key.