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


From: Andreas Schwab
Subject: Re: Why `echo -n hello | while read v; do echo $v; done' prints nothing?
Date: Thu, 02 Dec 2010 16:55:32 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux)

"Clark J. Wang" <address@hidden> writes:

> Following command also prints nothing, confused :(
>
> for ((i = 0; i < 10; ++i)); do echo -n " $i"; done | while read v; do echo
> $v; done

$ printf . | { read v; echo $?; }
1

Andreas.

-- 
Andreas Schwab, address@hidden
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
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