dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.
Unimus - Unimus is a Network Automation and Configuration management (NCM) solution designed for fast deployment network-wide and ease of use. Unimus does not require learning any abstraction or templating languages, and does not require any coding skills.
Duplicate Cleaner - Duplicate Cleaner: the fastest and most popular tool for finding duplicate files. Over 1 million downloads: Get your copy now! Free and Pro versions available.
Oxidized - configuration backup software (IOS, JunOS) - silly attempt at rancid
Czkawka - Multi functional app to find duplicates, empty folders, similar images etc.
RANCID - RANCID - Really Awesome New Cisco confIg Differ.