Back in Time (Linux software)

Back in Time is a free and open-source backup utility for Linux-based operating systems. It functions as a snapshot manager, taking periodic snapshots of specified directories and files and storing them in a designated location. These snapshots can be used to restore the system to a previous state, recover lost files, or compare different versions of files over time.

The software operates by creating hard links to unchanged files in subsequent snapshots, minimizing storage space. Only the files that have been modified since the last snapshot are actually copied, leading to efficient incremental backups.

Back in Time utilizes the rsync command-line tool for the actual file copying and snapshot creation. It provides a graphical user interface (GUI) built on Qt, making it user-friendly and accessible to users who may not be comfortable using the command line. The GUI allows users to configure various aspects of the backup process, including the source directories to be backed up, the destination location for backups, the backup schedule (e.g., daily, weekly, monthly), and the type of compression to be used.

The software offers multiple profiles, enabling users to create different backup configurations for different purposes or different directories. Each profile can have its own schedule, destination, and set of include/exclude patterns. Exclude patterns are crucial for preventing the backup of temporary files, caches, or other unnecessary data.

Back in Time allows users to browse the snapshots and restore individual files or entire directories to their original location or a different destination. It also supports restoring files from a remote location via SSH. Restoring a previous state is straightforward, enabling users to easily revert to a working version of their system or individual files.

While Back in Time is a powerful backup solution, it is important to note that it primarily focuses on data backup and restoration. It does not create system images or perform bare-metal backups. Therefore, it is recommended to use it in conjunction with other tools for complete system recovery solutions.