topic Re: tar restore in Operating System - HP-UX

tar restore

A.G.M. Velthof — Fri, 07 May 2004 01:16:18 GMT

Hello all,

I want to do a restore of multiple files from a tarfile.
I cannot use wildcards *, so how can I restore all files in the tar file starting with say 040505?
Perhaps with some kind of script?

Thanks in advance, Alfons

Re: tar restore

Joseph Loo — Fri, 07 May 2004 01:23:48 GMT

hi,

try this at the directory where you want to "untar":
# tar -xwf

the "w" option causes an interactive tar session in which you are asked to confirm restore for each file with either a "y" or "n". Slow but safe.

regards.

Re: tar restore

A.G.M. Velthof — Fri, 07 May 2004 01:39:31 GMT

Hello Joseph,

Because the archive contains thousands of little files and I need twenty of them your solution does not work for me.

Greetings, Alfons

Re: tar restore

Sanjay_6 — Fri, 07 May 2004 01:40:59 GMT

Hi,

Try this,

tar tf /dev/rmt/0m | grep 040505 | xargs tar xvf /dev/rmt/0m

This will restore all files that has 040505 anywhere within the name of the file or the directory. You can try with grep "/040505" and it might help in extracting only files and directories starting with 040505.

Hope this helps.

Regds

Re: tar restore

Mark Grant — Fri, 07 May 2004 01:49:53 GMT

This might be a little low tech but if you know the names of the twenty you need

tar xvf /dev/whatever file1 file2 file3 ...

Re: tar restore

A.G.M. Velthof — Fri, 07 May 2004 01:54:04 GMT

Hello Sanjaj,

it works fine, thanks.

Greetings, Alfons

Re: tar restore

Francisco J. Soler — Fri, 07 May 2004 01:54:12 GMT

Hi Alfons,

If you have all files inside a directory tree, you can restore it with:

tar xvf device directory_name

if not, you can list all files from the tape in a text file, then recover only what you want:

tar tf device > list_tar.txt

once you have list_tar.txt you can do:

cat list_tar.txt | grep 040505| xargs tar xvf device

The xargs is mandatory because it is possible to have a very long list of files and obtain a wrong number of arguments error.

Frank.