Sort data by month into tarballs using time metadata.
sudo cp time-sort-tar /usr/local/bin/
sudo chmod +x /usr/local/bin/time-sort-tar
sudo ln -sf /usr/local/bin/time-sort-tar /usr/local/bin/tst
sudo chmod +x /usr/local/bin/tst
sudo cp decade-sort /usr/local/bin/decade-sort
sudo chmod +x /usr/local/bin/decade-sort
cd /place/to/sort
tst Nov-1999
decade-sort
cd /var/myapp/logs
tst Jun-2019