You can tar or untar folders using below commands, and additional you can zipped them too :
To Compress a folder:
tar –czvf foldername.tar.gz foldername
To Uncompress a tar file:
tar –xzvf foldername.tar.gz
To View files within tar.gz:
tar –tzvf foldername.tar.gz
To Create tar only:
To Extract tar only:
tar -cvf foldername.tar foldername
To Extract tar only:
tar -xvf foldername.tar
To View tar only:
tar -tvf foldername.tar