查找命令中ctime 1和ctime +1之间的差异

Question

如果我运行以下命令：

find . -name "*.jar" -type f -ctime +1

我没有得到任何结果，但是如果我跑：

find . -name "*.jar" -type f -ctime 1

我得到了结果。

Answer 1

这意味着目录中的所有jar文件在48小时前都发生了状态更改。

详细解释

根据find手册页面，

-ctime n
    File's status was last changed n*24 hours ago.

还有..。

When find figures out how many 24-hour periods ago the file was 
last accessed, any fractional part is ignored, so to match -atime +1, 
a file has to have been accessed at least two days ago.

在其他地方..。

+n for greater than n

因此，-ctime +1意味着文件状态必须至少在48小时前发生了更改。