在Mac中使用Shell命令以递归方式更改文件和文件夹的权限 [英] changing permission for files and folder recursively using shell command in mac

问题描述

在Linux中，我们可以使用以下命令来递归地更改文件和文件夹的权限模式.

In Linux we can use the following command to change permission mode of the files and folders recursively.

找到"/Users/Test/Desktop/PATH" -exec * chmod 777 {} \;

find "/Users/Test/Desktop/PATH" -exec * chmod 777 {} \;

我如何在Mac上做同样的事情，因为我反复遇到以下错误.

how could i do the same for mac as i m getting the following error repeatatively.

查找:TEST_FILE:没有这样的文件或 目录

find: TEST_FILE: No such file or directory

推荐答案

问题是*正在由您的Shell解释，并且正在扩展为恰好在您当前工作目录中的名为TEST_FILE的文件，所以您要告诉find执行不存在的名为TEST_FILE的命令.我不确定您要使用该*完成什么，您应该删除它.

The issue is that the * is getting interpreted by your shell and is expanding to a file named TEST_FILE that happens to be in your current working directory, so you're telling find to execute the command named TEST_FILE which doesn't exist. I'm not sure what you're trying to accomplish with that *, you should just remove it.

此外，您应该使用习惯用法-exec program '{}' \+而不是-exec program '{}' \;，以便find不会为每个文件派生一个新进程.使用;，将为每个文件创建一个新进程，而使用+，它将仅派生一个进程并在单个命令行中传递所有文件，对于像chmod这样的简单程序，效率更高.

Furthermore, you should use the idiom -exec program '{}' \+ instead of -exec program '{}' \; so that find doesn't fork a new process for each file. With ;, a new process is forked for each file, whereas with +, it only forks one process and passes all of the files on a single command line, which for simple programs like chmod is much more efficient.

最后，chmod可以使用-R标志自行进行递归更改，因此除非您需要搜索特定文件，否则只需执行以下操作:

Lastly, chmod can do recursive changes on its own with the -R flag, so unless you need to search for specific files, just do this:

chmod -R 777 /Users/Test/Desktop/PATH

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