$/="" and -00 
$ cat input.txt 
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean quis
elit tempus, hendrerit sem a, maximus urna. Aenean vitae est at risus
fringilla egestas vitae in lacus.

In a metus vel elit varius rhoncus. Morbi at sem euismod, tincidunt
nunc quis, maximus quam. Sed maximus nibh vel suscipit ullamcorper.
Mauris sed ex ut nulla accumsan feugiat.

Donec sit amet sapien laoreet mauris sodales scelerisque. Aliquam
varius diam sit amet mollis iaculis. Quisque vel neque auctor, feugiat
velit eleifend, ultrices nunc. Vivamus condimentum metus quis nunc
tincidunt lobortis. Fusce a dolor sed tellus condimentum vulputate.

Proin ac tortor ut metus mattis gravida. Ut quis orci ornare, aliquet
dolor id, commodo justo.

$ perl -ln00e '/sed/i and print' input.txt
In a metus vel elit varius rhoncus. Morbi at sem euismod, tincidunt
nunc quis, maximus quam. Sed maximus nibh vel suscipit ullamcorper.
Mauris sed ex ut nulla accumsan feugiat.
Donec sit amet sapien laoreet mauris sodales scelerisque. Aliquam
varius diam sit amet mollis iaculis. Quisque vel neque auctor, feugiat
velit eleifend, ultrices nunc. Vivamus condimentum metus quis nunc
tincidunt lobortis. Fusce a dolor sed tellus condimentum vulputate.

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In reply to Re: Paragraph grep by Anonymous Monk
in thread Paragraph grep: request for testing, comments and feedbacks by siberia-man

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