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Re: Useful use of dd



* 2021-07-02 12:52:53+0200, Thomas Schmitt wrote:

> Teemu Likonen wrote:
>> For this new subject I will add another use: quickly create empty file
>> of specific size, for example 5 * 1024 bytes:
>>    $ dd of=empty obs=1024 seek=5 count=0
>
> Not to forget creation of sparse files with few disk consumption.

My example above already does that.

    $ dd of=empty obs=100G seek=1 count=0
    $ ls -gGlhs empty 
    0 -rw-r--r-- 1 100G 2021-07-02 14:21:18 empty

Zero blocks actually allocated, so far.

-- 
/// Teemu Likonen - .-.. https://www.iki.fi/tlikonen/
// OpenPGP: 4E1055DC84E9DFF613D78557719D69D324539450

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