On Tue, 16 Sep 2003 18:31:32 -0700 Ian L <[EMAIL PROTECTED]> wrote:
> Hey all,
>
> i made a stupid assumption ... tar would do something intelligently.
>
> I was running a back up such as: tar -cvlf file.tar -L 500000 /disk /disk2
>
> What i thought this would do is back up /disk and /disk2 in multiple tar
> files of 500megs each. Instead, it creates file.tar and when it hits
> 500megs, waits for me to hit return and then just continues where it
> stopped at, except it starts file.tar over.
>
> Can someone tell me a way that i can tar up (tar, zip, compress i dont
> care) a group of directories, and have them split up by whatever size i
> set? and have it be multiple files ... i dont want to sit there and
> manually rename files or anything. I want to let it run and come back later
> and have X number of archive files. Ultimately these will be burned on a
> dvd drive on a windows machine.
>
> thanks,
>
Hi Ian,
tar -cvlO /disk /disk2 | split -b 500000 - file.tar.
The -O option to tar says to send the archive to the standard output. split will create files names "file.tar." plus a two letter extension for as many files as it takes to store the input.
To get a listing of what's in the archive, something like:
cat file.tar.* | tar -tvf -
Of course you could add the -z or -j to the tar command so that the output is compressed too.
Cheers, Sean
much thanks ... especially since my idea wont work since there's a 2gb file size limit as ed pointed out. Oh well ... i'll have a backup system working eventually ... sometime this year. Last backup system i tried to set up didnt work too well since the company who made the tape drive went out of business about 2 weeks after i bought it. Anyone want a brand new onstream drive? :)
thanks again
Ian
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