touch -t mtime/atime/ctime

7猫. · **发表于 :** 2015-11-15 16:02

lintao@lintao-ubuntu:~/Project$ ll testcopy;ll --time=atime testcopy;ll --time=ctime testcopy
-rw-rw-r-- 1 lintao lintao 0 11月 13 15:39 testcopy
-rw-rw-r-- 1 lintao lintao 0 11月 15 15:39 testcopy
-rw-rw-r-- 1 lintao lintao 0 11月 15 15:39 testcopy

lintao@lintao-ubuntu:~/Project$ touch -t 9009070907 testcopy

lintao@lintao-ubuntu:~/Project$ ll testcopy;ll --time=atime testcopy;ll --time=ctime testcopy
-rw-rw-r-- 1 lintao lintao 0 9月 7 1990 testcopy
-rw-rw-r-- 1 lintao lintao 0 11月 15 15:44 testcopy
-rw-rw-r-- 1 lintao lintao 0 11月 15 15:44 testcopy

为什么atime不变啊。鸟哥的例子mtime和atime都改变了

vickycq · **发表于 :** 2015-11-15 18:21

会不会是挂载使用了 noatime 选项

代码:

cat /proc/mounts | grep /dev | grep atime

l0b0 写道:

You can turn off access time recording for some file systems (look for noatime in /etc/fstab). To test this, you could try to touch -a file; ls -l --time=atime file, then repeat touch -a file; ls -l --time=atime file to see if it changes.

参考
http://unix.stackexchange.com/a/19893
http://tldp.org/LDP/solrhe/Securing-Optimizing-Linux-RH-Edition-v1.3/chap6sec73.html

7猫. · **发表于 :** 2015-11-15 19:28

vickycq 写道: