Tentacle is a cross-platform file transfer protocol that aims to be secure and easy to use. The client and server are designed to be run from the command line or called from a shellscript. Secure file transfers to and from the server are supported.
Mrtools (Multi remote tools) are a set of multi-threaded system tools to manage large distributed environments including file distribution collection and concurrent shellscript or command execution. MrTools is written in Perl and utilizes ssh and rsync.