Maestral

Maestral is a lightweight Dropbox client for macOS and Linux. It provides powerful command line tools, supports gitignore patterns to exclude local files from syncing, and allows syncing multiple Dropbox accounts. The CLI allows configuring an unlimited number of Dropbox accounts. Just pass a new config name when linking a new account. More fine-grained controls in the GUI and command line interface allow excluding individual files with selective sync. Maestral is not an official Dropbox App. It therefore does not count towards the three-device limit for Basic Dropbox accounts. Exclude local items from syncing by placing a .mignore file in the Dropbox root with patterns matching any number of items.