Their main role is to traverse the directory, according to the command line parameters can be achieved in document features such as copy files to view.
主要的功能是遍历目录，根据命令行参数可以实现文件拷贝文件查看等功能。
This will help prevent making changes to files in the wrong view.
这将帮助阻止在错误的视图中对文件进行修改。
Linux logging is done to text files, so no proprietary tools are required to view the files.
Linux日志记录到文本文件，所以不需要专门的工具来查看这些文件。
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