Untar only folder structure from a tar ball


 
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# 1  
Old 12-27-2016
Hammer & Screwdriver Untar only folder structure from a tar ball

I have a tar file hello.tar which is 95 GB.

hello.tar has many files and folders including some tar files as well.

I wish to create a new tar ball which should maintain only the folder structure of hello.tar and the tar ball within the hello.tar

So basically the idea is to untar hello.tar in a way that only the folder structure is extracted.

Then the folder structure is used to create a new tar which will be only a few kbs along with maintaining the directory structure of hello.tar.

Code:
 uname -a
SunOS mymac 5.11 11.2 sun4v sparc sun4v

Kindly help.
# 2  
Old 12-27-2016
With a Solaris 10 or earlier system, assuming that your tar file is named tarfile, the following two step sequence should extract only the directories from your tarfile (by extracting everything from the archive except files that are not directories):
Code:
tar tf tarfile | grep -v '/$' > exclusions.$$
tar xfX tarfile exclusions.$$
rm -f exclusions.$$

With Solaris 11, you might need:
Code:
tar tf tarfile | grep -v '/$' > exclusions.$$
tar xf tarfile -X exclusions.$$
rm -f exclusions.$$

These 2 Users Gave Thanks to Don Cragun For This Post:
# 3  
Old 12-27-2016
Hammer & Screwdriver

Quote:
Originally Posted by Don Cragun
With a Solaris 10 or earlier system, assuming that your tar file is named tarfile, the following two step sequence should extract only the directories from your tarfile (by extracting everything from the archive except files that are not directories):
Code:
tar tf tarfile | grep -v '/$' > exclusions.$$
tar xfX tarfile exclusions.$$
rm -f exclusions.$$

With Solaris 11, you might need:
Code:
tar tf tarfile | grep -v '/$' > exclusions.$$
tar xf tarfile -X exclusions.$$
rm -f exclusions.$$

I will test it and update this thread in sometime.
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