If you find your remote PC with the graphical Dropbox client isn’t syncing, maybe you rebooted and the Dropbox daemon didn’t restart since you didn’t login remotely to the graphical desktop. You can remotely restart Dropbox over SSH with the command
When starting Dropbox this way, the Dropbox daemon will stop when you logout over SSH, so be sure that when you issue the command over SSH
that you get reply
Up to date
before disconnecting from your remote PC SSH.