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Date: Wed, 29 Aug 2012 15:11:43 -0500 (CDT)
From: Robert Bonomi <bonomi@mail.r-bonomi.com>
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To: ports@webrz.net
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Cc: freebsd-questions@freebsd.org
Subject: Re: Empty logfiles
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> From owner-freebsd-questions@freebsd.org  Wed Aug 29 15:02:37 2012
> Date: Wed, 29 Aug 2012 21:59:17 +0200
> From: Jos Chrispijn <ports@webrz.net>
> To: freebsd-questions@freebsd.org
> Cc: 
> Subject: Empty logfiles
>
> Stupic question: I have a directory with 120 logfiles (extension *.log).
> Can someone tell me how I can empty these logfiles in one command?
> I thought 'echo > *.log' would work, but no way K-)

Assuming 'sh', or something 'syntactically equivalent':

    for file in *.log ; do ; echo "" >$file ; done