C-在Windows中使用exec() [英] C- Using exec() in windows

问题描述

我已经看到许多针对unix系统的结果.我正在使用cygwin，所以我正在使用 unistd.h 库.我正在尝试运行此命令，但无法运行.我在这里可能想念什么?

I've seen many many results for unix systems. I am using cygwin so I am using unistd.h library. I am trying to run this command but It does not run. What could I be missing here?

execl("C:\\ WINDOWS \\ SYSTEM32 \\ CMD.EXE"，"/c echo foo> C:\\ Users \\ Sarp \\ Desktop \\ foo.txt");

推荐答案

execl 函数调用不会不为您拆分参数.基本上，这意味着调用函数时，需要将每个命令行参数分隔为不同的字符串参数.例如:

The execl function call does not split the arguments for you. This basically means that you need to separate each command line argument as a different string parameter when invoking the function. For example:

execl("C::\\WINDOWS\\SYSTEM32\\CMD.EXE", "cmd.exe", "/c", 
      "echo", "foo", ">C:\\Users\\Sarp\\Desktop\\foo.txt")

但是，我的印象是输出重定向可能不起作用(取决于Windows Shell如何解释这些重定向)，所以我鼓励您尝试

However, I'm under the impression that the output redirection may not work (depending on how the Windows shell interprets those), so I encourage you to try the system() function which resembles your usage case more closely.

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