fdupes vs RogueKiller

fdupes

File Management

fdupes is a free command line utility for identifying and deleting duplicate files in a directory or folder. It analyzes file contents and sizes to find exact or nearly exact duplicates and offers options to delete or link them to save disk space.

RogueKiller

Security & Privacy

RogueKiller is a free anti-malware program that scans your computer to detect and remove malware, viruses, trojans, rootkits, spyware, and other threats.