[root@cs vip]# echo $(date +%F -d '-1 day') 2016-12-05 [root@cs vip]# date Tue Dec 6 20:47:07 CST 2016
[root@ok ~]# date +%Y-%m 2016-11 [root@ok ~]# date +%Y-%m-%d 2016-11-05 [root@ok ~]# date +%Y-%m-%d -d '-1 day' 2016-11-04 [root@ok ~]# date +%Y-%m-%d -d '-1 month' 2016-10-05