Is there a file system or file system add-on that supports tags?

Question

ubuntu

Ubuntu 13.10
I heard about the file system, where each file / folder can be tagged, and even several, and searched for and so on. The question is: are there similar things for ext4 or something like that?

Answer 1

There are no such FSs in the core yet. There are addons working through FUSE:
- superuser.com/questions/81563/whats-a-good-solutio...
- stackoverflow.com/questions/3263036/filesystem-tha...
- stackoverflow.com/questions/15423636/ tag-based-fil...