How to compare the content of a tarball with a folder

Question

How can I compare a tar file (already compressed) of the original folder with the original folder?

First I created archive file using

tar -         


        

Answer 1

I've added to @zzeroo answer as I found that the times and user were all changed, as well as file permissions.

tar --compare --file=archive-file.tar -C /some/where/ | awk '!'Mode/ && !/Uid/ && !/Gid/ && !/time/'

That should output only the true differences between the tar and the directory /some/where/