Install backintime-common by entering the following commands in the terminal:
sudo apt update sudo apt install backintime-common
simple backup/snapshot system (common files)
Back In Time is a framework for rsync and cron for the purpose of taking snapshots and backups of specified folders. It minimizes disk space use by taking a snapshot only if the directory has been changed, and hard links for unmodified files if it has. The user can schedule regular backups using cron. . This is the common framework for Back In Time. For a graphical interface, install backintime-qt4. . To back up to SSH or encrypted filesystems, install the additional sshfs or encfs packages.