linux - how to untar tgz files distinctly -

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i have number of .tgz files exact same name, want untar them in 1 directory uniq names. preference append name of folder .tgz came from, 

original location= /folder1/folder2/2015/04/08/something1.tgz original location= /folder1/folder2/2015/04/09/something2.tgz

after untar, them decompressed below

target_folder= 20150408_something1 target_folder= 20150409_something2

something1.tar.gz , something2.tar.gz don't have same name. assume mean contain same toplevel folder/files?

in case (and assuming folder hierarchy consistent in path tarballs) should able use this.

for arc in /folder1/folder2/2015/04/08/something1.tgz /folder1/folder2/2015/04/09/something2.tgz;     # filename of archive.     fname=$(basename "$arc")     # strip off extension filename.     fname=${fname%.*}      # last 3 directory components.     dname=$(awk -f / '{print $(nf-3)$(nf-2)$(nf-1)}' <<<"$arc")      mkdir "${dname}_$fname" || { ret=$?; echo "could not create directory ${dname}_$fname."; exit $ret; }     tar -xvf "$arc" -c "${dname}_$fname" done

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