rsync

rsync is a command-line utility for efficiently transferring and synchronizing files and directories between two locations. It uses a delta-encoding algorithm to minimize data transfer by only sending the differences between files, making it particularly useful for backups, mirroring, and updating remote systems.

This tool is primarily for system administrators, developers, and power users who need a robust and flexible solution for data synchronization and backup tasks. It supports local and remote operations, offering options for preserving permissions, ownership, and timestamps.