Date: Wed, 24 Jan 2007 22:50:23 -0500 From: parv@pair.com To: Oliver Fromme <olli@lurza.secnetix.de> Cc: f-q <freebsd-questions@freebsd.org> Subject: Re: [OT] What does this pipe do? Message-ID: <20070125035023.GA4657@holestein.holy.cow> In-Reply-To: <200701241547.l0OFlUJR098159@lurza.secnetix.de> References: <17846.45976.831959.633584@jerusalem.litteratus.org> <200701241547.l0OFlUJR098159@lurza.secnetix.de>
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in message <200701241547.l0OFlUJR098159@lurza.secnetix.de>,
wrote Oliver Fromme thusly...
>
> Just for completeness, ">&" (file) and ">|" (pipe) are also
^^
^^
> supported by zsh (which is a bourne-shell like sh, ksh or bash).
The ">|" construct (in bash [23] & zsh 4), as I know, is to bypass
no-clobber option (when set of course) when redirecting to a file.
Actually, from zshall(1) ...
>| word
>! word
Same as >, except that the file is truncated to zero length if
it exists, even if CLOBBER is unset.
...
>>| word
>>! word
Same as >>, except that the file is created if it does not
exist, even if CLOBBER is unset.
> In fact it's simply a shortcut for "2>&1" (which means to dup
> descriptor 2 [=stderr] to desciptor 1 [=stdout]).
- Parv
--
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