Quine (Perl)

From LiteratePrograms

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A "Quine" is a program that prints its own sourcecode when it is run. For a definition, see Wikipedia's article on Quines. I also recommend David Madore's Page for a highly readable introduction.

Quine in Perl, which use heredoc. Main problem is last newline in heredoc.

<<Quine1.pl>>=
$quine = <<'END';
$quine = <<'END';
%s
%s
($quine2) = $quine =~ /(.*)\n$/s;
printf $quine, $quine2, 'END';
END
($quine2) = $quine =~ /(.*)\n$/s;
printf $quine, $quine2, 'END';

External links

• Perl Signature Quine
• Perl quine
• More perl quine

Download code