-rw-r--r-- 1 root root    0 Sep  3 04:02 snap_expire.log-20140829
-rw-r--r-- 1 root root    0 Sep  3 04:02 snap_expire.log-20140829-20140831
-rw-r--r-- 1 root root 1634 Aug 29 03:48 snap_expire.log-20140829-20140831-20140902
-rw-r--r-- 1 root root    0 Sep  2 04:02 snap_expire.log-20140829-20140831-20140903