A general description of simple file transfers is available at hpc-wiki.info/hpc/File_Transfer.
The login nodes, especially fugg1 and 2, are mostly intended for job submissions. If you expect to move larger amounts of data, e.g. to a local computer, consider submitting a job that moves the data from a worker node to your system. This way, you can shift the workload away from login nodes.
Files are usually transferred with