Is there a tool that I can use on Linux to make a backup on the cloud for a list of files and folders so that only changes made to each individual file is uploaded to the cloud, without having to store duplicates locally. I think DropBox have something like that bu just for one folder, so I think I would need to have duplicates of each single file and folder in the list in the DropBox folder, and keep then in sync, which is what I'm trying to avoid.
- it is incremental
- the backup is encrypted
- it is simpler than Duplicity
As mentioned here, it can be configured on Ubuntu to backup to DropBox (I never tried myself).
Here is a list of protocols mentioned as theoretically supported on the duplicity page:
- Amazon S3
- Backblaze B2
- Google Docs
- Google Drive
- local filesystem
- Microsoft Azure
- Microsoft Onedrive
- Rackspace Cloudfiles
Also, I give Duply the list of folders to backup without ever having to duplicate those folders.
Finally, I never tried to backup a single file but this page mentions that single files can be configured to be backed up with Duply:
Duply normally uses a whitelist. To include certain directories or files from a backup the exclude file must be created in the Duply directory. The syntax allows you to add directories and files using + /pfad/zur/datei. To exclude a directory the exclude ein - /pfad/zum/Verzeichnis command must be inserted. In addition, Duply allows the use of wild cards. The file illustrated here exclude secures the directory /etc/, /root/, /var/www/ and excludes all other directories.