On 8/27/05, Todd Walton <[EMAIL PROTECTED]> wrote:
> On 8/26/05, Gus Wirth <[EMAIL PROTECTED]> wrote:
> > To get the first part all you have to do is count bytes. For example, to
> > read the first 1000 bytes from file DATA:
> >
> > dd if=DATA bs=1 count=1000 | some-program
>
> Ah! Yes. I was so caught up on thinking seek and skip were
> opposites, and that one should do what I wanted...
>
> Is block size limitless? Why do you suggest "bs=1000 count=1" Carl?
> Performance reasons?
Yes. Better to read 1000 bytes once than one byte 1000 times. Less overhead.
carl
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carl lowenstein marine physical lab u.c. san diego
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