Do you want to transfer files remotely from one UNIX-based system to another? Try using the scp tool, which is a shorthand for Secure Copy Protocol. It's based off the SSH protocol using it as a means to securely transfer files from a local machine to one or more remote machines.

Here's a code snippet that can help you out to transfer from computer A to computer B:

scp your_local_file user@ipaddress:/directory_to_store

And transfer from computer B to computer A:

scp user@ipaddress:/directory/file_name your_local_directory

Oh, before you transfer files to another computer, make sure that you have permissions to access it first. If you don't have one, then create a new account using useradd on your remote system.