how about this one?
https://github.com/andreafabrizi/Dropbox-Uploader/
easy KUAL script to sync a folder...
OK not quite so easy as I imagined. Got it working fine on my laptop, so I know it works. Thing is, it requires Bash, not the busybox version. I exported it from deb but I'm having some issues. Still trying...
Anybody know how to get a full bash? obviously there is a ton of stuff here. the executable bash works, but there is no shopts of whatever - I have no idea here.