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DAR – Disk ARchive

DAR is a command-line backup and archiving tool that uses selective compression (not compressing already compressed files), strong encryption, may split an archive in different files of given size and provides on-fly hashing.

DAR knows how to perform full, differential, incremental and decremental backups. It provides testing, diffing, merging, listing and of course data extracting from existing archives.

Archive internal’s catalog, allows very quick restoration of a 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, …)

more details at: http://dar.linux.free.fr/doc/Features.html

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Website http://dar.linux.free.fr/
  • Archiving/backup
  • Integrated compression (gzip, bzip2, lzo, xz/lzma) and encryption
  • Public key encryption (PGP) and strong encryption (AES, twofish, blowfish, serpent, camellia)
  • Sliced archive in files of requested size
  • Arbitrarily large file backup and archive creation
  • Full/incremental/differential/decremental backup
  • Handle any type of inode (directory, plain files, special devices, symlinks, named pipes, sockets, doors...)
  • Hardlink support for plain files, special devies, softlinks, named pipes,
  • Sparse file detection and restoration
  • Extended Attributes support (including Linux ACL and MacOS X File Forks)
  • Fast restoration of files even from compressed and/or encrypted archive
  • Support for tape (sequential reading mode)
  • Table contents isolation for use as differential backup or if archive corruption occurred
  • On-fly md5, sha1 or sha512 hash file generation for each archive slice
  • Hooks for user's scripts between slices
  • Hooks for action before and after saving user defined directory of file (suitable for live database backup)
  • Detection of file change during backup, possibility to retry a failed file up to a given number times
  • Archive merging with default or fine tunable overwriting policy
  • Dry-run execution mode
  • User comments in archive header
  • Archive reslicing without decompression or decryption
  • Backup/restoration over ssh or netcat
  • Integrated archive protection and repair using Parchive