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Re: dd in loop doesn't transfer full blocks

From: Henrik Carlqvist
Subject: Re: dd in loop doesn't transfer full blocks
Date: Wed, 08 Dec 2010 15:04:10 -0000
User-agent: Pan/0.14.2 (This is not a psychotic episode. It's a cleansing moment of clarity.)

jim <> wrote:
>    while $not_finished
>       do  dd bs=$BS count=1

> The problem is that dd never transfers a full block; $BS is about
> 400000, and each time through the loop, dd only transfers about 73xxx
> bytes, and sometimes less.

Is $BS a multiple of something? If so, maybe it would help to do something

do  dd bs=`echo $BS/8 | bc` count=8

regards Henrik
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