Instead of re-creating your tar archives when you need to add files, why not simply append those files? Jack Wallen shows you how from the command line and a GUI file manager on Linux.

Overview. One of my favorite utilities on the Linux command-line, and block storage is one of my favorite features on Linode's platform, so in this article I get to combine both of these together - ...

The tar portion of the extension means the file is a tar archive and the gz indicates it’s been compressed. You could then decompress that new file with the command tar -xvzf TEST.tar.gz.