Dupster

Dupster is a fast, open-source duplicate file finder designed for macOS and Linux users, providing a modern terminal user interface (TUI). This tool simplifies the process of identifying and managing duplicate files directly from the command line, eliminating the need to remember complex commands.

Key Features

• Efficient Duplicate Detection: Utilizes staged reads for quick scanning, allowing fast identification of duplicate files.
• User-Friendly Interface: A modern and responsive TUI that is both keyboard and mouse-friendly, built with Textual.
• Previews for Safe Deletion: Before removing duplicates, users can preview the files to ensure safe cleanup.
• Path Management: Easily copy full file paths for use in other terminal tabs or editors.
• File Integrity Checking: Utilizes SHA-256 hashing to verify truly identical files.
• Versatility: Effective for disk cleanup across various environments, including servers, media libraries, and backup drives.

Performance Improvements

Version 0.0.8 introduced significant speed enhancements by minimizing disk I/O before executing full file verification. This staged scanning approach improves both efficiency and performance, ensuring users can maintain their systems with minimal wait time. Benchmarks reveal drastic reductions in read times for large file collections, making Dupster an optimal choice for users with extensive file systems.

Example Usage

To utilize Dupster, simply run the following commands from your terminal:

# Scan the Downloads folder for duplicates
dupster ~/Downloads

# Verify duplicates in the Pictures directory
dupster ~/Pictures --verify

# Scan a backup directory with specified workers
dupster /mnt/backup --workers 1

# Scan the source directory while ignoring files less than 1MB
dupster ~/src --min-size 1048576

# Follow symlinks during the scan
dupster ~/src --follow-symlinks

Terminal Recommendations

For an enhanced Dupster experience, users are advised to utilize GPU-accelerated terminal emulators, such as Ghostty, which provides a quicker and more visually appealing interface.

Themes and Customization

Dupster supports a variety of Textual themes, starting with "Catppuccin Mocha" as the default. Users can easily switch themes on-the-fly within the application, ensuring a personalized visual experience.

Conclusion

Dupster is a practical solution for anyone seeking an efficient and straightforward method to manage duplicate files in their terminal. By merging powerful functionality with user-friendly design, Dupster allows users to maintain a clean, organized file system effortlessly.