Dates

date +'%Y-%m-%d'

2023-02-28

date --date='2 days ago' +'%Y-%m-%d'

2023-02-26

date +'%s'

1677607151

date --date @1677607151 +'%Y-%m-%d.%H:%M:%S %Z'

2023-02-28.09:59:11 PST