Date: Sun, 5 Jan 2014 10:40:01 GMT From: Taras Korenko <ds@ukrhub.net> To: freebsd-doc@FreeBSD.org Subject: Re: docs/185481: sh/bash Parameter Expansion +/- syntax not documented Message-ID: <201401051040.s05Ae1Oi079693@freefall.freebsd.org>
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The following reply was made to PR docs/185481; it has been noted by GNATS.
From: Taras Korenko <ds@ukrhub.net>
To: FreeBSD-gnats-submit@freebsd.org
Cc:
Subject: Re: docs/185481: sh/bash Parameter Expansion +/- syntax not
documented
Date: Sun, 5 Jan 2014 12:30:13 +0200
On Sat, Jan 04, 2014 at 07:45:19PM -0800, Ronald F.Guilmette wrote:
> ...
> ${parameter-word}
> ${parameter+word}
>
> These forms are not however documented in the "Parameter Expansion"
> sections of either the man page for sh or the man page for bash.
> ...
"In the parameter expansions shown previously, use of the colon in the
format results in a test for a parameter that is unset or null; omission
of the colon results in a test for a parameter that is only unset."
(c) sh(1) under "Parameter Expansion" section (also on web -> [1]).
--
1. http://www.freebsd.org/cgi/man.cgi?query=sh&apropos=0&sektion=1&manpath=FreeBSD+9.2-RELEASE&arch=default&format=html
--
WBR, Taras Korenko
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