DAR (Disk ARchive) is an Open Source 64-bit command-line utility aimed at backup and archiving large live filesystems.

It uses selective compression (not compressing already compressed files), strong encryption, may split an archive into different files of a given size and provides on-the-fly hashing. It also knows how to perform full, differential, incremental, and decremental backups. It includes testing, diffing, merging, listing, and extracting data from existing archives.

Archive Internal's catalog allows rapid restoration of even a single file from a very large, eventually sliced, compressed, and encrypted archive.

DAR saves *all* UNIX inode types, takes care of hard links, sparse files, as well as Extended Attributes (MacOS X file forks, Linux ACL, SELinux tags, user attributes), it has support for ssh and is suitable for tapes and disks (floppy, CD, DVD, hard disks, ...)

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