I have two folders.
A is an older version of B, having been copied at some point.
There may be changes in A but that are not in B.
I wanna find out if there are any, and what they are if they exist.
How do i do that, preferably using Linux standard utils
@4censord I'd use `git diff --no-index A B`. The flag means it doesn't expect the folders to be in Git at all, just does the normal Git diff algorithm on their contents.
That's partly because I use Git all the time and like its diff behavior.
A more old-fashioned / classic-tools solution, with GNU diff: `diff -Nur`, or `diff -Nqr` first for a summary.
@4censord Another approach, if the changes that are new in B are too numerous and drown out the A changes in a full diff: you could look at the file modification times in A, if you trust those.
So e.g. `find A -newermt '2025-01-01'` to list files touched since the given date. You can also name some other file in order to use its mtime as the comparison point; look in `man find` under "newerxy".
4censord 
Greg Price