Hi,
Tar already has such a feature. A long time ago, it would have needed to
spread data across backup tapes.
look at the man page for tag for something like --multi-volume.
Kind Regards
James
On Wed, 29 May 2019 at 12:12, Rob Malpass via Hampshire <
hampshire@???> wrote:
> Hi all
>
>
>
> I’ve never been a bash script expert (to say the least!) but I need a
> clever script (I assume that’s the easiest way but please say if not) that
> can turn 120 files (amounting to 2Tb of data) into 40 files of <=50Gb for
> an archiving project I’m about to embark on. Can anyone help / give me
> some pointers?
>
>
>
> I can guarantee none of the files are over 50Gb in size. So it’s a
> question of something like:
>
> Create an empty archive (call it n.tar.gz)
>
> Repeat
>
> Find next (uncompressed) file
>
> Compress it to tmp.tar.gz
>
> If size of tmp.tar.gz < (50Gb – current size of n.tar.gz) then
>
> Append tmp.tar.gz to n.tar.gz
>
> Else
>
> Close n.tar.gz
>
> Alert me so I can write n.tar.gz to MD
>
> Create next empty archive ((n+1).tar.gz)
>
> Add tmp.tar.gz to (n+1).tar.gz
>
> End If
>
> Until all files have been compressed
>
>
>
> The end product should be 40 files called n.tar.gz (where 0<n<41).
>
>
>
> Any (constructive!) ideas very welcome.
>
>
>
> Cheers
>
>
>
>
> --
> Please post to: Hampshire@???
> Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire
> LUG URL: http://www.hantslug.org.uk
> --------------------------------------------------------------
--
Please post to: Hampshire@???
Web Interface:
https://mailman.lug.org.uk/mailman/listinfo/hampshire
LUG URL:
http://www.hantslug.org.uk
--------------------------------------------------------------
