rsync

Rclone ("rsync for cloud storage") is a command-line program to sync files and directories to and from different cloud storage providers.

GUI for Rclone, the CLI for cloud storage & S3.

Snapshot-based backup over SSH/rsync and rclone — command-line client.

Cross-platform SSHpass - SSH with password authentication from the command line

High-performance file copying CLI with delta sync and intelligent transfer