如何编写执行Cprogram：Ls | Wc> OUTPUT.TXT [英] How Do I Write A Cprogram Executing: Ls | Wc > Output.Txt

问题描述

提示：你需要（至少）一个管道，2个叉子和2个exec系统调用

Hint: you need (at least) a pipe, 2 forks, and 2 exec system calls

推荐答案

提示：我们不做你的功课：它是因为一个原因而定。它就是为了让你思考你被告知的事情，并试着理解它。它也在那里，以便您的导师可以识别您身体虚弱的区域，并将更多的注意力集中在补救措施上。



亲自尝试，你可能会发现它不是和你想的一样困难！



如果遇到具体问题，请询问相关问题，我们会尽力提供帮助。但我们不打算为你做这一切！

Hint: we do not do your homework: it is set for a reason. It is there so that you think about what you have been told, and try to understand it. It is also there so that your tutor can identify areas where you are weak, and focus more attention on remedial action.

Try it yourself, you may find it is not as difficult as you think!

If you meet a specific problem, then please ask about that and we will do our best to help. But we aren't going to do it all for you!

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