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

It should be --diff

Try this (without the last directory_name):

tar --diff -vf directory_name.zip

The problem is that the --diff command only looks for differences on the existing files among the tar file and the folder. So, if a new file is added to the folder, the diff command does not report this.