Shell (34): time

Reference resources : Shell Script fetches the day before yesterday 、 Yesterday and today - Grey letter network （ Software development blog aggregation ）

today

date -d "now" +%Y-%m-%d

Tomorrow,

date -d 1day +%Y-%m-%d

yesterday

date -d -1day +%Y-%m-%d

%Y	year
%m	month
%d	Japan
%H	when
%M	branch
%S	second