date +%s 能打印出自1970-01-01 00:00:00到当前时间的秒数

 

[root@bass Desktop]# date +%s
1466561580
[root@bass Desktop]# python
Python 2.6.6 (r266:84292, Jul 23 2015, 15:22:56) 
[GCC 4.4.7 20120313 (Red Hat 4.4.7-11)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> 60*60*24
86400
>>> 1466561580
1466561580
>>> 1466561580/86400
16974
>>> 1466561580/86400/365
46
>>> 
>>> 1970-01-01

[root@bass Desktop]# date
Wed Jun 22 10:15:26 CST 2016