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Re: [Help-bash] modifying files in place.

From: Pierre Gaston
Subject: Re: [Help-bash] modifying files in place.
Date: Fri, 31 May 2013 05:33:52 +0300

On Fri, May 31, 2013 at 4:00 AM, John Kearney <address@hidden> wrote:
> Hi all,
>   so I recently came across a new construct (for me) to edit a file in
> place.
> { rm file && awk 'whatever' >file } <file
> I'm just wondering how portable is it? This seems to be making use of OS/FS
> specific behavior.
> Thanks
It works on all the unix like OS at least and posix defines this behaviour,
The main drawback is that if awk fails you may loose part or all the data.

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