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Why `echo -n hello | while read v; do echo $v; done' prints nothing?


From: Clark J. Wang
Subject: Why `echo -n hello | while read v; do echo $v; done' prints nothing?
Date: Thu, 2 Dec 2010 19:04:57 +0800

Following command also prints nothing, confused :(

for ((i = 0; i < 10; ++i)); do echo -n " $i"; done | while read v; do echo
$v; done

-- 
Clark


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