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08.15.2007 at 06:01AM PDT, ID: 22763933
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How to copy from a server to another while preserving owner data, permissions AND timestamp?

Asked by tonikaram in HP-UX Unix, Unix Operating Systems

Tags: copy, server, from, another

When I copy using rcp -rp from one HP_UX server to another, the following happens:

- the timestamp on directories and files is maintained, which is good
- the permissions of files seems to remain in some cases.
- the ownership data (root, sybase, etc) is LOST and the user making the operation becomes the new owner on the destination server.

when I copy using tar cvf - and then untar xvf-, the following happens:

- the timestamp on directories (not files) is LOST, and the time of copy is written
- the permissions of files seems to remain in some cases.
- the ownership data seems to remain in some cases.

What is the definite way of copying directories/files from one server to another under HP_UX to maintain owner, permissions, and timestamp (of both files and directories)?

(something like rcp -rp server:/opt/admin/bin/* for example)

Thanks,
Kay


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Keywords: How to copy from a server to another …
Title
1 tar in unix machine
2 skip a file on untar
3 Untarring multiple files
4 not able to untar
5 Copy files and preserve the TimeStamp…
6 untar
 
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[+][-]08.15.2007 at 04:31PM PDT, ID: 19704383

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[+][-]08.15.2007 at 10:15PM PDT, ID: 19705624

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[+][-]08.15.2007 at 11:25PM PDT, ID: 19705823

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[+][-]08.16.2007 at 12:31AM PDT, ID: 19706062

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[+][-]08.16.2007 at 04:26PM PDT, ID: 19713555

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[+][-]08.16.2007 at 04:28PM PDT, ID: 19713562

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[+][-]08.17.2007 at 12:44AM PDT, ID: 19715168

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[+][-]08.17.2007 at 01:34AM PDT, ID: 19715326

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[+][-]08.17.2007 at 04:02AM PDT, ID: 19715797

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[+][-]03.10.2008 at 07:21AM PDT, ID: 21086562

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[+][-]03.14.2008 at 04:00PM PDT, ID: 21130373

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About this solution

Zones: HP-UX Unix, Unix Operating Systems
Tags: copy, server, from, another
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Solution Provided By: Computer101
Participating Experts: 5
Solution Grade: A
 
 
 
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08.15.2007 at 04:31PM PDT, ID: 19704383
ezaton:
Tar has flags for maintaining these properties. They require that the extracting user will be root, and no other user. Only root can preserve times, ownerships and permissions.
 
08.15.2007 at 10:15PM PDT, ID: 19705624
omarfarid:
Hi,

Please note that the users on both servers must have the same uid and gid since tar will only record uid and gid.

 
08.15.2007 at 11:25PM PDT, ID: 19705823
ezaton:
Thanks for pointing that out. I should have mentioned it myself.
 
08.16.2007 at 12:31AM PDT, ID: 19706062
tonikaram:
I will test the different settings of tar and let you know.

Kay
 
08.16.2007 at 04:26PM PDT, ID: 19713555
dragulj:
I suggest you to use scp instead of rcp. Make sure you have the same UIDs and GIDs for users (check passwd file). The best way is actualy combination: tar && (gzip || compress) && scp
 
08.16.2007 at 04:28PM PDT, ID: 19713562
dragulj:
There is also rsync for HP-UX which is a good solution if you need to synchronize files between machines, on the same machine and even plain copying ...
 
08.17.2007 at 12:44AM PDT, ID: 19715168
tonikaram:
Scp is just a secure copy, does it maintain timestamp?
Regarding rsync, any help on syntax? do i need to install something additional?

I just found that tar/untar does NOT preserve the timestamp of new directories.

Thanks,
Kay
 
08.17.2007 at 01:34AM PDT, ID: 19715326
ezaton:
Unfortunately, I do not have an HP-UX available to me right now, however, I do have other *nix systems, and what you're saying is a surprise, as far as I know.

Tar does maintain all permissions, ownerships and timestamps, at least for me, where it is being used in various locations in backup scripts. You could try using GNU tar for this purpose yourself. Maybe HP's has some built-in limitations.
 
08.17.2007 at 04:02AM PDT, ID: 19715797
tonikaram:
The trick is if you copy a directory, where this directory already exists on the destination server, then the timestamp is preserved. But if you create a new directory on server A at 11:00 and tar/untar it to server B at 11:30 it will have timestamp 11:30 on server B

Kay
 
03.10.2008 at 07:21AM PDT, ID: 21086562
JustUNIX:
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I will leave the following recommendation for this question in the Cleanup Zone:
PAQ - Refund Points

Any objections should be posted here in the next 4 days. After that time, the question will be closed.
JustUNIX, Experts Exchange Cleanup Volunteer
 
03.14.2008 at 04:00PM PDT, ID: 21130373
Computer101:
PAQed with points refunded (500)

Computer101
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Accepted Solution
 
 
20080716-EE-VQP-32 / EE_QW_2_20070628