Looking for a CLI tool to sync files across multiple clouds

I use Google Drive, Dropbox, and OneDrive for different projects. Keeping files in sync across all three is manual and error-prone. Need a command-line tool that can automatically sync specific folders across multiple cloud providers with conflict resolution.

A command-line tool that can automatically sync specific folders across Google Drive, Dropbox, and OneDrive with intelligent conflict resolution. Should work reliably in the background and handle large files efficiently.

Bi-directional sync, conflict resolution, selective folder sync, cross-platform CLI, progress reporting, dry-run mode, logging, scheduling