rsync

The classic delta-transfer tool for copying and mirroring files.

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About rsync

rsync copies files locally or over SSH, transferring only the parts that changed using its rolling-checksum algorithm, which makes repeated synchronisation of large trees cheap. It preserves permissions, ownership, timestamps, links and extended attributes, and can delete files that no longer exist at the source.

Strengths

  • Transfers only the changed parts of files, so repeat syncs are fast
  • Preserves permissions, links and attributes, which makes it safe for system trees

Limitations

  • No versioning or snapshots on its own; --delete destroys without warning
  • Command-line only, with a long list of subtle flags

Details

Pricing
FreeFree and open source under the GPL.
License
GPL-3.0
Developer
The rsync project
Platforms
Windows, macOS, Linux, Command line
How it runs
Downloadable app
Best suited for
The classic delta-transfer tool for copying and mirroring files
Categories
File sync
Last verified
Added
Provenance
Selected from the TechWalrus Resource Hub (Backup & Sync); facts checked against the developer's own pages, 3 sources on file.

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