追踪的结果会输出到一个文本文件或者终端窗口上，其中会列出程序中运行的入口和出口方法。

A trace will normally be output either to a text file or a console window, and it will list method entries and exits in the program as it runs.

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Ruby和Groovy开发人员喜欢炫耀他们如何能迭代整个文本文件并通过一行代码将其内容输出到控制台。

Ruby and Groovy developers like to brag about how they can iterate across a text file and print its contents to the console with a single line of code.

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此命令将安装活动和信息输出到一个文本文件，我们可以使用该文件诊断问题。

This will output the installation activity and information to a text file, which we can use to diagnose the problem.

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