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How to avoid TAR of directory with no permissions?

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Top Forums Shell Programming and Scripting How to avoid TAR of directory with no permissions?
# 8  
Old 03-18-2013
\T\h\a\n\k\s \! Smilie
# 9  
Old 03-19-2013
Hi,

Thanks for the reply. But let me put my issue clear here;
1. When i TAR Directory with no permissions a TAR file is created containing empty directory.
2. now during untar i can retrieve this directory but with no contents. Contenets have not been tar due to no permissions.
3. Ideally it should have tar the directory since it had no permissions.
4. In order to clean this TAR i need to remove tyhis directory from the same TAR file.
5. Using PAX gives me same command error that permission denied and nothing changes.

Code:
 
find /u01/appl/t1elkpe/pst/max/SCRIPTDIR/fd/ \! \( -type d -perm 0 -prune \) | pax -w > 20130314154440.tar
find: cannot read dir /u01/appl/t1elkpe/pst/max/SCRIPTDIR/fd/: Permission denie

Can you please highlight how can i delete unwanted directories from my TAR files?

Thanks and Regards
Rajan Gupta
# 10  
Old 03-19-2013
One wonders why you have a directory with no permissions. I suppose, if you can't see in it, then you can't back it up and you can't extract it anyway. As backups need to be able to set permissions when they are restored, this is a process for the superuser really.

If you have superuser access, then it seems to work fine:-
Code:
RBATTE1 @ /usr/home/RBATTE1/uf>sudo find . -exec ls -ld {} \;
drwxr-xr-x   3 RBATTE1  SYSSUP          256 19 Mar 09:29 .
d---------   2 RBATTE1  SYSSUP          256 19 Mar 09:31 ./dufdir
-rw-r--r--   1 RBATTE1  SYSSUP            5 19 Mar 09:31 ./dufdir/file3
-rw-r--r--   1 RBATTE1  SYSSUP            6 19 Mar 09:29 ./file1
----------   1 RBATTE1  SYSSUP            4 19 Mar 09:29 ./file2
RBATTE1 @ /usr/home/RBATTE1/uf>sudo tar -cvf ../uf.tar .     
a .
a ./dufdir
a ./dufdir/file3 1 blocks
a ./file1 1 blocks
a ./file2 1 blocks
RBATTE1 @ /usr/home/RBATTE1/uf>sudo rm -r *
RBATTE1 @ /usr/home/RBATTE1/uf>sudo find . -exec ls -ld {} \;
drwxr-xr-x   2 RBATTE1  SYSSUP          256 19 Mar 09:35 .
RBATTE1 @ /usr/home/RBATTE1/uf>sudo tar -xvf ../uf.tar 
x .
x ./dufdir
x ./dufdir/file3, 5 bytes, 1 tape blocks
x ./file1, 6 bytes, 1 tape blocks
x ./file2, 4 bytes, 1 tape blocks
RBATTE1 @ /usr/home/RBATTE1/uf>sudo find . -exec ls -ld {} \;
drwxr-xr-x   3 RBATTE1  SYSSUP          256 19 Mar 09:29 .
d---------   2 RBATTE1  SYSSUP          256 19 Mar 09:31 ./dufdir
-rw-r--r--   1 RBATTE1  SYSSUP            5 19 Mar 09:31 ./dufdir/file3
-rw-r--r--   1 RBATTE1  SYSSUP            6 19 Mar 09:29 ./file1
----------   1 RBATTE1  SYSSUP            4 19 Mar 09:29 ./file2
RBATTE1 @ /usr/home/RBATTE1/uf>

Is this an option?


Robin
Liverpool/Blackburn
Uk
# 11  
Old 03-19-2013
Hi,

I am designing a script that worlks like recycle bin funtcionality in windows.
So if you accidently delete a directory which has no permission you would not able to do it and the tar file created should not contain any traces of this directory.

I am testing a senario. below are the cronological events i am testing for my script.

1. i created a directory with contents. change permissions to 0.
2. tried deleting it. TAR file contain the empty directory with the same name.
3. Now if i try to extract the tar and lets suppose the original directory has regained it access then this empty directory replaces the directory with contents.

So i am trying to identifyu this directory and remove from the tar that is created.

Can you please help me in this.

Best Regards,
Rajan Gupta
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