For example, to copy content of folder "folder_a" into "folder_b" on Metis, do
The above "-avz" options tell rsync to preserve all attributes (timestamp, ownership, permissions) of files in folder_a and copy everything, including "hidden" files. Note that the trailing "/" is important: if it is omitted, then rsync will copy the folder_a itself instead of its content.
Similarly, to copy the "folder_a" on user's system into "folder_b" on Metis, do
Where you will replace "yourUserID" with the user ID provided for you. You'll then be asked to provide your password. Alternatively, scp and sftp programs can be used as well. Use "info command" or "man command" to learn available options, replacing "command" with scp/sftp/rsync.