Rsync

rsync transfers files incrementally and provides features for backup and restore, according to its project description.

Visit Rsync
github.com/RsyncProject/rsync
Rsync homepage screenshot

About Rsync

Rsync is a file copying tool for remote and local files. It uses a delta-transfer algorithm that sends only the differences between files to bring remote files into sync.

It provides features for backup and restore operations and is used in a similar way to scp with additional options. It normally uses ssh or rsh for remote communication and can also run in daemon mode for file distribution with authentication and access control.

Key features

  • Copies both remote and local files
  • Sends only file differences using delta-transfer algorithm
  • Supports backup and restore operations
  • Communicates with remote systems over ssh or rsh
  • Runs in daemon mode for public file distribution
  • Provides authentication and access control in daemon mode
Best for: People who need to copy local and remote files, synchronize file differences, and handle backup and restore tasks.
Good for
  • Sends only file differences across the link
  • Works with both local and remote files
  • Requires no special privileges for installation
Watch out for
  • Requires a working ssh or rsh system for remote communication

Rsync at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Open source
Not stated
Language
English
Last checked
Oct 5, 2026 · Online when checked
Listed
Oct 5, 2026

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Rsync FAQ

How do I see available options?
Type rsync --help for a list of options and see the manpage for more detailed information.
How does rsync connect to remote systems?
It normally uses ssh or rsh, with ssh recommended for security, or it can run in daemon mode listening on a socket.
How do I build rsync from source?
Run the configure script to create a Makefile and config.h appropriate for the system, then type make.
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