[2][3] Released under the terms of the GNU General Public License (GPL), Duplicity is free software.
[2] To transmit data to remote backup repositories, it can use SSH/SCP/SFTP, rsync, FTP, IMAP, Amazon S3[5], Google Cloud Storage[6] amongst others.
Currently duplicity supports deleted files, full Unix permissions, directories, and symbolic links, fifos, and device files, but not hard links.
[9] Duply[10] is a shell frontend for Duplicity adding support for profiles and batch commands.
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