Shell 获取当前日期是当年的第几周第几天

可以查看帮助手册

man date

常用的几个;

• 显示当年的第几周

 date +%V		// %V     ISO week number, with Monday as first day of week (01..53)

• 显示当年的第几天

date +%j

• 显示年份

date +%G

扩展，python获取

root@jason:~# python
Python 2.7.6 (default, Jun 22 2015, 17:58:13) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import datetime
>>> datetime.datetime.now().isocalendar()
(2019, 27, 5)
>>>