浅谈linux 文件的三个时间

linux文件包含哪些文件时间戳

1. ctime:指inode上一次变动的时间
2. mtime:指文件内容上一次变动的时间
3. atime:指文件上一次的打开时间

如何查看文件状态？

[root@localhost ~]# stat anaconda-ks.cfg 
  File: ‘anaconda-ks.cfg’
  Size: 1532      	Blocks: 8          IO Block: 4096   regular file
Device: fd00h/64768d	Inode: 134315951   Links: 1
Access: (0600/-rw-------)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2018-09-27 14:18:57.241101232 +0800
Modify: 2018-09-25 16:23:27.666231700 +0800
Change: 2018-09-27 14:44:18.081563127 +0800
 Birth: -
[root@localhost ~]# 

使用touch -t 修改文件时间

[root@localhost ~]# date && stat anaconda-ks.bak && ls -l anaconda-ks.bak 
Thu Sep 27 15:28:06 CST 2018
  File: ‘anaconda-ks.bak’
  Size: 1532      	Blocks: 8          IO Block: 4096   regular file
Device: fd00h/64768d	Inode: 134905508   Links: 1
Access: (0600/-rw-------)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2018-09-27 15:27:33.730985321 +0800
Modify: 2018-09-27 15:27:33.731985298 +0800
Change: 2018-09-27 15:27:33.731985298 +0800
 Birth: -
-rw------- 1 root root 1532 Sep 27 15:27 anaconda-ks.bak
[root@localhost ~]# touch -t 201701010100 anaconda-ks.bak 
[root@localhost ~]# date && stat anaconda-ks.bak && ls -l anaconda-ks.bak 
Thu Sep 27 15:28:40 CST 2018
  File: ‘anaconda-ks.bak’
  Size: 1532      	Blocks: 8          IO Block: 4096   regular file
Device: fd00h/64768d	Inode: 134905508   Links: 1
Access: (0600/-rw-------)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2017-01-01 01:00:00.000000000 +0800
Modify: 2017-01-01 01:00:00.000000000 +0800
Change: 2018-09-27 15:28:39.243458931 +0800
 Birth: -
-rw------- 1 root root 1532 Jan  1  2017 anaconda-ks.bak
[root@localhost ~]#