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Re: Trying to understand man page for dd

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On 05/28/2017 07:04 AM, The Wanderer wrote:
> On 2017-05-28 at 07:58, Richard Owlett wrote:
>
>> It says in part:
>>
>>> Sending a USR1 signal to a running 'dd' process makes it print I/O
>>> statistics to standard error and then resume copying.
>>>
>>>     $ dd if=/dev/zero of=/dev/null& pid=$!
>>>
>>>     $ kill -USR1 $pid; sleep 1; kill $pid
>>
>> I think it is trying to tell me what I need to know.
>> But there is too much going on there,
>> Guidance please.
>> TIA
>
> Can you clarify what it is that you don't understand, or what it is
> that you need to know?
>
> Because the part you quoted (which I do recognize, and have made use
> of myself in the past) seems perfectly straightforward and
> understandable to me, and you haven't provided any context to
> indicate what your problem is or what it is that you don't understand.
>

I suppose what I want is a translation of those two lines of script.
The man page just tosses it at me cold.
I didn't say what I was thinking because it would be pure noise.
Than man page was trying to convey something.
It did not.

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Thread

Trying to understand man page for dd Richard Owlett <rowlett@cloud85.net> - 2017-05-28 14:00 +0200
  Re: Trying to understand man page for dd JPlews <jw@plews.org.uk> - 2017-05-28 14:10 +0200
    Re: Trying to understand man page for dd Richard Owlett <rowlett@cloud85.net> - 2017-05-28 14:30 +0200
    Re: Trying to understand man page for dd Ulf Volmer <u.volmer@u-v.de> - 2017-06-02 00:00 +0200
      Re: Trying to understand man page for dd Curt <curty@free.fr> - 2017-06-03 14:00 +0200
  Re: Trying to understand man page for dd The Wanderer <wanderer@fastmail.fm> - 2017-05-28 14:10 +0200
    Re: Trying to understand man page for dd Richard Owlett <rowlett@cloud85.net> - 2017-05-28 14:30 +0200
  Re: Trying to understand man page for dd "Thomas Schmitt" <scdbackup@gmx.net> - 2017-05-28 14:50 +0200
    Re: Trying to understand man page for dd Richard Owlett <rowlett@cloud85.net> - 2017-05-28 15:00 +0200
  Re: Trying to understand man page for dd David <bouncingcats@gmail.com> - 2017-05-29 02:50 +0200
    Re: Trying to understand man page for dd "Thomas Schmitt" <scdbackup@gmx.net> - 2017-05-29 08:30 +0200
      Re: Trying to understand man page for dd Richard Owlett <rowlett@cloud85.net> - 2017-05-29 14:10 +0200
        Re: Trying to understand man page for dd David Wright <deblis@lionunicorn.co.uk> - 2017-05-29 15:40 +0200
          Re: Trying to understand man page for dd Richard Owlett <rowlett@cloud85.net> - 2017-05-29 16:20 +0200
            Re: Trying to understand man page for dd "Thomas Schmitt" <scdbackup@gmx.net> - 2017-05-29 17:20 +0200
            Re: Trying to understand man page for dd David Wright <deblis@lionunicorn.co.uk> - 2017-05-29 17:20 +0200
        Re: Trying to understand man page for dd David <bouncingcats@gmail.com> - 2017-05-30 04:30 +0200
    Re: Trying to understand man page for dd mbroe@oakland.edu - 2017-05-31 15:20 +0200

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