python3 extract specifc tar files

jzoudavy · 11-10-2015, 04:29 PM

hi all

I have a bunch of tar files which I have to untar and extract specific files from them.

The problem is that the tar file structured like this:

sosreport-xx.xx.xx.xx.1-some_sort_of_hashA-some_sort_of_hashB.tar.xz
---xx.xx.xx.xx.some_sort_of_hashA
-------folders/files
-------folders/files

the xx.xx.xx.xx.some_sort_of_hashA is unique to each file and I am not sure how to include that in the path for extraction.

I want to do something like this:

x = tarfile.open(sosreport)
x.extractall(full path to the file that I want).

The problem is the with the root path always in flux I am not sure how to cut that up.

Thanks in advance for all your help

dugan · 11-10-2015, 04:40 PM

The approach that comes to mind, for me, is to list them file paths contained in the tarball and then use os.path.basename to determine which ones you want to extract.

NevemTeve · 11-10-2015, 10:59 PM

Use python to start find(1):

Code:

find /somepath -name 'sosreport-*.tar.xz' -exec tar xJvf {} files_to_extract \;