As people have become more security concious with the transfer of data, in particular on the Enterprise/Corporate environments security teams are tightening down more and more on the use of insecure protocols. As a result the old favourites of TFTP/FTP etc are being removed. A number of replacements exist SCP/SFTP and to all intense and purpose facilitate the transfer of data.
scp file.txt user@xxxxxxxxxxx:/home/user/.
scp user@xxxxxxxxxxx:/home/user/file.txt .