This C project is built to find text similarities between two files. What it actually does is it scans two file you give as input and outputs the similar words.
But what do I mean by telling similar words? Actually it firstly outputs the words involved in both files. And secondly, it outputs 2-grams which means contiguous sequence of 2 items involved in both files.
If you are reading this file, most probably you know how to compile this C program and execute it. But if you don't know it, I have a Wiki page for you to be with US. Visit it.