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Old 09-13-2012, 08:12 AM   #1
kiranonlinuxque
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[SOLVED] how to untar a tar.gz file on another machine


Hi,
I have a 50gb of file.tar.gz. I cannot untar it on the same machine as the space is very low.
How can I untar the file on some other machine in the same network, without moving the original file to that machine.

Thanks
Kiran

Last edited by kiranonlinuxque; 09-13-2012 at 09:08 AM.
 
Old 09-13-2012, 08:29 AM   #2
Didier Spaier
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Hi,

AFAIK, you can't.

You could launch the command from the other machine with some directory on that other machine as a target but then you will have to transfer a much heavier load than that of the original file.

So either move the original file on a physical support or through the network, with wget or rsync.

Maybe I am lacking of imagination, so I'd be glad to recognize I was wrong if that's the prize I have to pay to learn something
 
Old 09-13-2012, 08:43 AM   #3
ruario
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If you have a sshd running on the machine with the big tar archive and an ssh client on the one you are copying to, then you could do this:

Code:
ssh machinewitharchive "cat /path/to/file.tar.gz" | tar xz
EDIT: Actually it would work the other way as well (ssh client on the machine with the big file and ssh server on the receiving machine):

Code:
cat /path/to/file.tar.gz | ssh machinereceivingarchive "tar xz"
Don't you just love tar pipes?

EDIT 2: Another option would be to use network shares. Then you could mount the directory containing the big archive on the receiving machine and just do a regular "tar xf file.tar.gz". NFS or SMB/CIFS would be obvious options for this. Alternatively could still use ssh via SshFS/Fuse or perhaps fish:// in a file manager like Dolphin and then use Ark to unpack.

Last edited by ruario; 09-13-2012 at 08:59 AM.
 
Old 09-13-2012, 09:07 AM   #4
kiranonlinuxque
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That's a lot of info ruario. Thank you so much. It worked.
[SOLVED]
 
Old 09-13-2012, 09:09 AM   #5
ruario
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Quote:
Originally Posted by kiranonlinuxque View Post
It worked.
Cool, thanks for letting me know!

EDIT: Out of interest, tar pipe or remote mount? I'm hoping you used a tar pipe, just because it is more fun and geeky!

Last edited by ruario; 09-13-2012 at 09:10 AM.
 
Old 09-13-2012, 09:35 AM   #6
ruario
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Just as an F.Y.I. tar pipes involving BSD tar would let you do really funky stuff like copy the contents of a gzip compressed tar on one machine and convert on the fly to another format, say a xz compressed cpio file.

Code:
cat /path/to/file.tar.gz | ssh machinereceivingarchive "bsdtar -cf- --format cpio @- | xz > file.cpio.xz"
Why would you ever do this? I don't know, other than because it is awesome that it is even possible.
 
  


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