Bash gunzip | untar multiple files in separated folders

bashtar

I have a list of .tar.gz files with the same inner folder structure and I'd like to batch gunzip | untar a single file from them in separated folders.

logs_2013-08-01.tar.gz
logs_2013-08-02.tar.gz
logs_2013-08-03.tar.gz
logs_2013-08-04.tar.gz
logs_2013-08-05.tar.gz

I know the command to untar a single file is 

tar -xvf {tarball.tar} {path/to/file}

And adding the -C to specify the output folder the command for a single archive looks like: 

tar -xvf logs_2013-08-01.tar.gz -C 2013-08-01/ /var/logs/audit

But how can I do a loop to untar everything?

Best Answer

You can try this (tested on Linux/bash):

for pkg in logs_*.tar.gz; do
   where="${pkg#logs_}"
   where="${where%.tar.gz}/"

   [ -d "$where" ] || mkdir "$where"

   tar zxfv $pkg -C "$where" /var/logs/audit
done

Simply, you loop over all the tgz archives in the current dircetory, then you take "date" part from its name, create required directory and extract them finally.

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