[CentralOH] dayspan: a piano 'fingering exercise' in shell

[jep200404 at columbus.rr.com]

On Thu, 15 Jun 2017 14:15:42 -0400 (EDT), R P Herrold <herrold at owlriver.com> wrote:

> days_spanned.sh-invoked.txt

Here is some rough working code:

    http://nbviewer.jupyter.org/github/james-prior/cohpy/blob/master/20170615-dojo-days-of-months.ipynb

Hope to improve readability and make output prettier also.