linux下查询history操作时间的方法

[root@jb51 ~]$ history | tail
989 2013-06-24 19:06:04 admin vi .bash_profile
990 2013-06-24 22:06:03 admin ll
991 2013-06-24 22:06:09 admin vi .bash_profile
992 2013-06-24 22:06:18 admin ll -ag
993 2013-06-24 22:06:55 admin history | tail
994 2013-06-24 22:07:11 admin vi .bash_profile
995 2013-06-24 22:07:24 admin history | tail
996 2013-06-24 22:07:32 admin eixt
997 2013-06-24 22:07:35 admin exit
998 2013-06-24 22:07:41 admin history | tail