Raider 
Raider is a simple shredding program built for the GNOME desktop. Also known as File Shredder, it uses a customized version of a program from the GNU Core Utilities package, included on every Linux distribution, called shred. Raider supports all the options that shred supports.
Download
Useful links
- GNOME Circle: https://apps.gnome.org/app/com.github.ADBeveridge.Raider/
- Arch Linux AUR: https://aur.archlinux.org/packages/raider-file-shredder
- Fedora COPR: https://copr.fedorainfracloud.org/coprs/0xmrtt/raider/package/raider/
- Build manifest: https://github.com/flathub/com.github.ADBeveridge.Raider
- Report issues: https://github.com/ADBeveridge/raider/issues/