Linux or MacOS

To establish an sftp (secure file transfer protocol) connection to another computer, run the command in a terminal
sftp username@hostname
where username is the name of your account on the host machine (if it's missing, then you will be connected with the same username as on your local machine), and hostname is the complete name of the remote host, like axle.iusb.edu. If you are asked if you are sure that you want to open this connection, answer yes.

SFTP commands

• get, put, to transfer one file at a time from and to the remote machine.
• mget, mput, to transfer multiple files from and to the remote machine. Use the wildcard * to identify the group of files.
• Some of the usual shell commands like cd and ls work on the remote machine
• The same commands with an l (lowercase "el") in front, will do the same thing on the local machine, like lcd, lls.
• Ctrl-D or quit or exit or bye to exit SFTP.

Windows

You can install a program called WinSCP and have a GUI version of the program. Once you establish the connection with the same information as above (username, host name, type of connection: FTP or SFTP), then you get two explorer-like windows where you can drag files from one side to the other to transfer them.