Days between two dates

This little script reports back how many days fall between two arbitrary dates, or one date and today. If you put in a date in the future, it tells how many days as a negative; # How many days ’till Christmas? HowManyDays 2017-12-25 -115# How many days ’till Christmas? HowManyDays 2017-12-25 -115 #!/bin/bash # SRJ…