?????????????????????????????????????????????????????????=?????????????????????????????????????????=???????????????????????????????????????=??????????????????????????????????????????
[root@DB-Server ~]# cat test
You have new mail in /var/spool/mail/root
[root@DB-Server ~]# stat test
File: `test'
Size: 0               Blocks: 0          IO Block: 4096   regular empty file
Device: 802h/2050d      Inode: 4196044     Links: 1
Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2016-07-25 16:20:20.000000000 +0800
Modify: 2016-07-25 15:53:07.000000000 +0800
Change: 2016-07-25 15:53:07.000000000 +0800
[root@DB-Server ~]#
clip_image001
[root@DB-Server ~]# vi test
121232131
[root@DB-Server ~]# stat test
File: `test'
Size: 10              Blocks: 8          IO Block: 4096   regular file
Device: 802h/2050d      Inode: 4196050     Links: 1
Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2016-07-25 16:21:31.000000000 +0800
Modify: 2016-07-25 16:21:31.000000000 +0800
Change: 2016-07-25 16:21:31.000000000 +0800
[root@DB-Server ~]#
?????????? ????5????????5?????????5???????????2???????
????find . -type f -ctime +5 -delete
????find . -type f -mtime +5 -delete
????find . -type f -atime +5 -delete
????????????????????????????????????л???????У?????????????????У????????????????
????find /backup/mysql -mtime +5 -name "*.*" -exec rm -rf {} ;