In the hypothetical pipeline in Listing 10, command2 and command3 both have parameters, while command3 USES the - parameter alone to signify input from stdin.

在清单10的假设管道线中，command2和command3都带有参数，但command3仅使用-参数表示来自stdin的输入。

youdao

In the hypothetical pipeline in Listing 10, command2 and command3 both have parameters, while command3 USES the - parameter alone to signify input from stdin.

在清单10的假设管道线中，command2和command3都带有参数，但command3仅使用-参数表示来自stdin的输入。

youdao