on plan9port:
% echo foobar | 9 grep '$JUNK'
 -> foobar

that is, p9p grep matches any line with regular expression in form of
$ANY_REGEX

why is it so?

-- 
dexen deVries

[[[↓][→]]]

For example, if the first thing in the file is:
   <?kzy irefvba="1.0" rapbqvat="ebg13"?>
an XML parser will recognize that the document is stored in the traditional 
ROT13 encoding.

(( Joe English, http://www.flightlab.com/~joe/sgml/faq-not.txt ))

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