self reproducing code

How to write a quine

self-reproducing code

A quine is a program, takes no input and produces a copy of its own source code as its only output.

original code is:

Head is: malicious code + data of line numbers for tail
Body is:  `Head in string` + `Tail in string`
Tail   is:  reproducing code

Tail code = print(Body.head) + print(Body) + print(Body.tail)

after execution:

1. execute malicious code
2. print the code it self

usage: XXS worm