Filter (12) for blank file types?

[TheGhost78]

Is there a way to filter for files with no extension?

[TheGhost78]

For example, when downloading images from Twitter they save without a file extension, so I fix them all to .jpg. At the moment, I have a really long filter excluding all known file types, then apply the fix.

[Luuk]

Filters(12) would need a checkmark for "Regex" and without the checkmark for "Folders".
Then a "Mask" like ^([^.]+|.*\.)$ could show any names with no-dots or dots at the very-end.
BRU cannot rename any files ending with a dot, but they can be removed on the command-line.

[TheGhost78]

I've just realised... you can do it like this:
* !*.*
No need to exclude each file type individually!