This little program helps with the following task:
You need to analyse some binary file (e.g., the firmware for some
microcontroller). You want to understand how it does certain things, but the
file is big. One approach to help you in the process is to erase parts of the file
(by overwriting it with binary zeros) and see if the file still does what it
should be doing. If it does, then you know that the interesting parts are in
another part of the file.
binary-binary assists in this process by doing the book-keeping and zeroing
out parts of the file.