Diffstat 1.41 - A utility which provides statistics based on the output of diff.

The diff command compares files line by line. Diffstat reads the output of the diff command and displays a histogram of the insertions, deletions and modifications in each file. Diffstat is commonly used to provide a summary of the changes in large, complex patch files.

Install diffstat if you need a program which provides a summary of the diff command's output. You'll need to also install diffutils.