Comparing a bunch of files on different folders

Question

I have two folders with 200 txt files each, all files named like file1.txt, file2.txt, file3.txt, etc., on both folders.

Is there a way to use one command to compare file1 in both folders, file2 in both folders, etc., and list if they are the same or not? I just want to know which files are the same or not, not the differences.

Answer 1

The -q option to diff makes it only list the names of files with differences (or missing from one of the directories):

diff -q folder1 folder2