I have: a directory with many nested subdirectories and files.

I would like: a list of all files whose name doesn't contain a certain string.

Example file structure:

foo/

foo/bar/foobar.txt

foo/foo/foobartest.txt

foo/foobartest.txt

If I enter my query with the string "test" it should return only /foo/bar/foobar.txt

I suppose one would use find with some regex?

Thanks a lot for your help!