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
* Gontran () wrote:
> * 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