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Re: The usage of [[ (not with if)


From: Andreas Schwab
Subject: Re: The usage of [[ (not with if)
Date: Wed, 04 Aug 2010 17:28:28 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux)

Bob Proulx <address@hidden> writes:

> Neither of those produce any output.
>
>   $ printf '%d\n' ""
>   0

Since the command substitution is not quoted the result of the expansion
is subject to field splitting, thus expands to nothing at all instead of
a single empty argument.

Andreas.

-- 
Andreas Schwab, address@hidden
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