I'm trying to recursively diff 2 directories with lots of hierarchy/files within them. It's overwhelming to parse through the results.
What I'd like is a simple summary report that shows what's in one directory but not the other. I can write a simple perl script to do it, but wondering if I'm missing some obvious solution.
Edit: I found this thread: Given two directory trees, how can I find out which files differ? and something like this seems to work:
diff --brief -r dir1/ dir2/ |grep -v differ