Re: [Trinux-talk] Splitting a file

[Matthew F. <mf...@ci...>]

On Wed, Jul 09, 2003 at 06:52:34PM +0200, jc...@co... wrote:
> Hi,
> 
> I'm using Trinux to back up Windows workstations by imaging the disk drive
> with dd and sending the result to the backup server over Samba. Trouble is
> that Samba chokes on files larger than 2 GB. Therefore I'm trying to find
> out how to split the piped result into several files. Which command,
> available in Trinux, would I use for that and which package is it in?
> 
> Any help appreciated. Thanks.
> 
> 

You should be able to use the count and seek options with dd to do
this. The dd in the fileutil.tgz package should have the full (GNU)
version of dd (vs. a busybox version).


from man dd

       Copy  a  file,  converting and formatting according to the
       options.

       bs=BYTES
              force ibs=BYTES and obs=BYTES

       cbs=BYTES
              convert BYTES bytes at a time

       conv=KEYWORDS
              convert the file as per the comma separated keyword
              list

       count=BLOCKS
              copy only BLOCKS input blocks

       ibs=BYTES
              read BYTES bytes at a time

       if=FILE
              read from FILE instead of stdin

       obs=BYTES
              write BYTES bytes at a time

       of=FILE
              write to FILE instead of stdout

       seek=BLOCKS
              skip BLOCKS obs-sized blocks at start of output

       skip=BLOCKS
              skip BLOCKS ibs-sized blocks at start of input