Bonus:

Explanation: asking for a program to effectively remove duplicates gives 14 programs that do essentially the same (therefore, making them duplicates).
Relevant XKCD:
- Why, it makes totally sense. One is done inefficiently, the next doesn’t have feature X, this one does something entirely different and that one i don’t like the programming language/approach. - “This one is just like the most popular one, but entirely rewritten in Rust!” 
 
- Nice. I actually wanted a program to find duplicates and tell me, without doing anything to them, so that I can make decisions on a case-by-case basis. - Now I found 14 duplicates out of which some might fit my case. - I always found the actual challenge to decide what to get rid of once the duplicates where found. - Some tools I tried would also ask file-by-file, which I found a bit useless for thousand of files. Yet, I cannot even express a set of rules to decide this in general, so I’m not blaming the tools. - In particular, with picture collections I also came to the conclusion that some redundancy is probably ok rather than accidentially deleting data that I duplicated on purpose and simply forgot why. - Also, it is important that the tool recognises if the whole directory tree has been duplicated. e.g. if you duplicate an installation folder. 
- Exactly, with things like music or pictures, there’s always that bit of doubt that makes it scary to actually delete anything… 
 
 


