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如何从命令行每 N 分钟删除一次文件夹

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如何从命令行每 N 分钟删除一次文件夹

我正在尝试运行以下命令来删除超过 3 分钟的 tmp 文件夹：

 find /tmp/tmp* -mmin +3 -exec rm -rf {} \;

上述命令失败。为什么？

find /tmp/tmp* -mmin +3 -exec rm -rf {} \;
find: `/tmp/tmpAJaHLX/crashes': No such file or directory
find: `/tmp/tmpbM5ac8/minidumps': No such file or directory
find: `/tmp/tmpbM5ac8/crashes/events': No such file or directory
find: `/tmp/tmpdQACdf/gmp': No such file or directory
find: `/tmp/tmpo1tbqu/thumbnails': No such file or directory
find: `/tmp/tmpW91Yel/extensions': No such file or directory

答案1

find您所看到的内容可能是该命令的结果遍历顺序。

例如给定一个简单的目录

$ find somedir
somedir
somedir/file

然后

$ find somedir -exec rm -rfv {} \;
removed ‘somedir/file’
removed directory: ‘somedir’
find: `somedir': No such file or directory

您可以使用选项强制深度优先遍历-depth，即

$ find somedir -depth -exec rm -rfv {} \;
removed ‘somedir/file’
removed directory: ‘somedir’

不会导致错误。

或者，您可以使用更简单的find somedir -delete方法（如手册页中所述）来打开-depth选项

-delete
       Delete files; true if removal succeeded.  If the removal failed,
       an  error message is issued.  If -delete fails, find's exit sta‐
       tus will be nonzero (when it eventually exits).  Use of  -delete
       automatically turns on the -depth option.

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