Talvez zssh ?
zssh (Zmodem SSH) is a program for interactively transferring files to a remote machine while using the secure shell (ssh). It is intended to be a convenient alternative to scp , allowing to transfer files without having to open another session and re-authenticate oneself.
zssh is an interactive wrapper for ssh
Ele usa o venerável rz, sz implementações de transferência de arquivos zmodem.