A tool to extract the increased amount reduced compared to the l

This is a merge tool created experimentally with Ruby.

When zencart1.5.5f and zencart1.5.6a are placed in the same directory and executed,

Write the latest contents of zencart.1.5.6a to marge.txt.
./admin/include
./admin/
And so on.

For some reason, the latest zencart1.5.6a is written in new.txt.

The contents of old zencart1.5.5f are written in delete.txt, new.txt and delete.txt are compared, line by line is deleted, and what is in delete.txt is deleted, and the remainder is the difference file It is a program called.

It's experimental and hasn't been tried yet, so it's a good idea to modify it before using it, or first download it for reference.