I would like to backup my files and folders. What is an easy to use software for backing up selected folders and files in Debian 9?
I'm assuming you want to backup on external media.
If you want to simply backup the do a copy operation on the files and folders
If you want to sync one way, i.e from laptop to external media, which means whenever there is an update on the laptop side then send only the incremental changes to the external media. The command 'rsync' can handle such backups effortlessly.
If you're looking for GUI tools, then this link may have some suggestions (PS: I haven't used any of the UI tools).