Date: Fri, 2 May 2003 19:53:40 -0400 (EDT) From: Jerry McAllister <jerrymc@clunix.cl.msu.edu> To: freebsd-questions@freebsd.org Subject: Zeros and ones Message-ID: <200305022353.h42NreOY018887@clunix.cl.msu.edu>
next in thread | raw e-mail | index | archive | help
Hi,
This should be easy, but short of writing something specific to do it,
I am not getting my head around how.
It is easy and convenient to use /dev/zero to write out a number of
zero bytes to somewhere - as in:
dd if=/dev/zero of=zerofile bs=512 count=1770000
or
dd if=/dev/zero of=/dev/da1 bs=512 count=1770000
But, I would like to write all ones - as in 0xff or maybe some
other pattern - as if there was a /dev/one also.
Is there a nice way to do this using UNIXistic stringing existing
stuff together? Or do I have to write a little piece of code?
Thanks for any [positive] suggestions.
////jerry
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200305022353.h42NreOY018887>