How-to Create a 1M file

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著者: Gontran
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題目: How-to Create a 1M file
* Gilbert T. Gutierrez, Jr. () wrote:
> I need to create a junk file that is precisely 1MB. How would I go about
> doing that?
>


Gilbert,

dd is your what you're looking for I think,, something like

    % dd if=/dev/random of=/my/file.junk count=1000000


Maybe dev/random is not such a good choice, and also look into the
size arguments too (ibs=, obs=), something as a factor of 1024 would
probably be nice. Make sure 1000000 is a Mr.

th,
Gontran