How do I find files that do not end with a newline/linefeed?

Question

How can I list normal text (.txt) filenames, that don\'t end with a newline?

e.g.: list (output) this filename:

$ cat a.txt
asdfasdlsad4rand         


        

Answer 1

If you have ripgrep installed:

rg -l '[^\n]\z'

That regular expression matches any character which is not a newline, and then the end of the file.