Shell Programming and Scripting

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.

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.