
What is a quine?

A quine is a self-duplicating program which prints out its
exact own source code. Every character in the output from the
program is a duplicate of the program's text. This includes
EOL characters like CR(\n) and LF(\n).

For more info on quines, see

http://www.nyx.net/~gthompso/quine.htm

or

http://www.madore.org/~david/computers/quine.html