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To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
From: arisawa@ar.aichi-u.ac.jp
Date: Mon, 20 Nov 2006 17:40:24 +0900
Subject: [9fans] echo -n
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Hello,

I have a question:
echo -n
writes 0 length byte to stdout.
Is this intentional specification?

If it is, what is intended for the specification?

Output to pipe by a rc script such as
echo -n $foo
can close the pipe if $foo is empty.
Therefore we are obliged to write
if(~ $foo ?*)
	echo -n $foo

Kenji Arisawa