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From: Junio C Hamano <gitster@pobox.com>
To: tboegi@web.de
Cc: git@vger.kernel.org
Subject: Re: [PATCH v2 1/1] t0003: Call dd with portable blocksize
Date: Sun, 22 Jan 2023 08:21:45 -0800	[thread overview]
Message-ID: <xmqqtu0isfom.fsf@gitster.g> (raw)
In-Reply-To: <20230122062839.14542-1-tboegi@web.de> (tboegi@web.de's message of "Sun, 22 Jan 2023 07:28:39 +0100")

tboegi@web.de writes:

> From: Torsten Bögershausen <tboegi@web.de>
>
> The command `dd bs=101M count=1` is not portable,
> e.g. dd shipped with MacOs does not understand the 'M'.

Very good piece of information to have here.

> Use `bs=1048576 count=101`, which achives the same, instead.

I'd locally tweak (read: no need to resend) it to

    Use `dd bs=1048576 count=101`, which ...

and downcase "Call" on the title line.

A tangent.  I wonder how portable 

    dd bs=1024x1024 count=101
    dd bs=1kx1k count=101

are in practice.  "Two or more positive decimal numbers (with or
without 'k' or 'b') separated by 'x', specifying the product of the
indicated values" is from POSIX, but I haven't used it myself (I
know GNU dd groks it).

In any case, thanks for the update.

  reply	other threads:[~2023-01-22 16:21 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-21 11:05 [PATCH v1 1/1] t0003: Call dd with portable blocksize tboegi
2023-01-22  0:08 ` Junio C Hamano
2023-01-22  6:28 ` [PATCH v2 " tboegi
2023-01-22 16:21   ` Junio C Hamano [this message]
2023-01-22 18:00     ` Torsten Bögershausen

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