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

This should do the trick:

#!/bin/bash

for file in `find $1 -type f -name "*.txt"`;
do
        nlines=`tail -n 1 $file | grep '^$' | wc -l`
        if [ $nlines -eq 1 ]
                then echo $file
        fi
done;

Call it this way: ./script dir

E.g. ./script /home/user/Documents/ -> lists all text files in /home/user/Documents ending with \n.