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find -mtime 不起作用

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find -mtime 不起作用

我尝试了文章中的所有建议： 5天后删除文件的脚本

当我运行不带参数的 find 时，-mtime它会找到我正在寻找的文件。当我添加时-mtime +2，什么也没有返回。我知道在使用该命令查找的目录中有相应日期的文件find。

答案1

从man find：

 -atime n
          File was last accessed n*24 hours ago.  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.

 -mtime n
          File's  data  was  last  modified  n*24  hours ago.  See the comments for -atime to
          understand how rounding affects the interpretation of file modification times.

但另请参阅：

  -daystart
          Measure  times  (for  -amin,  -atime,  -cmin,  -ctime,  -mmin, and -mtime) from the
          beginning of today rather than from 24 hours ago.  This option only  affects  tests
          which appear later on the command line.

总之，用来find -mtime +1查找 2 天前的旧文件。

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