命令行访问，支持过滤和格式化。

Command line access to filter and format.

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可以将它们用作过滤器，或者将文件名作为命令的参数。

They can be used as filters, or they can take a filename as an argument.

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这是用来创建新过滤的命令。

This is the one you use to create new filters.

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这是用来创建新过滤的命令。

This is the one you use to create new filters.

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