Looking for files NOT owned by someone

Question

I\'m looking to recursively look through directories to find files NOT owned by a particular user and I am not sure how to write this.

Answer 1

Looking for files NOT owned by someone

Others have answered the question "NOT owned by a particular user" in the body. Here's one that answers the titular question but has not been provided:

$ find / -nouser

You can use it like so:

$ sudo find /var/www -nouser -exec chown root:apache {} \;

And a related one:

$ find / -nogroup