This script was inspired by @alexbosworth's channel.backup backup script and my own .lnd folder backup script. It monitors lnd's channel.backup file for changes and uploads those changes to Dropbox when detected.
To get started, download the script:
$ cd && wget -qN https://gist.githubusercontent.com/vindard/e0cd3d41bb403a823f3b5002488e3f90/raw/4bcf3c0163f77443a6f7c00caae0750b1fa0d63d/lnd-channel-backup.sh
$ sudo chmod +x lnd-channel-backup.sh