[root@localhost testdir]# stat 333.jpg  File: `333.jpg'  Size: 0               Blocks: 0          IO Block: 4096   regular empty fileDevice: fd00h/64768d    Inode: 265506      Links: 1Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)Access: 2014-03-08 01:41:27.044001195 +0800Modify: 2014-03-08 01:41:27.044001195 +0800Change: 2014-03-08 01:43:33.863000946 +0800[root@localhost testdir]#

[root@localhost testdir]# echo $?0[root@localhost testdir]#$?  rs