FIles transferrer over SHell protocol is a protocol to use SSH or rsh to transfer files between computers. Serverside, FISH requires nothing more than a working shell, and doesn't require file transfer to be enabled on the SSH server. Optionally, there can be a special FISH server program start_fish_server installed on the server.
The advantages of FISH are that all it requires serverside is an SSH or RSH implementation and it doesn't require anything to be mounted clientside, which reduces hassle when only using FISH for one file.
Open Konqueror and type something like the following in your address/URL bar:
Note: You will be prompted for a password.