Running EXE Files from Command Line Arguments in C

In this article, we will explore how to execute an .exe file from the command line arguments in C programming. We will cover the basics of running .exe files, specifying command line arguments, and how to handle these arguments in your C program.

How to Run an .exe File at the Command Prompt

To run an .exe file on your command line, follow these steps:

Open a command window (e.g., CMD). Navigate to the folder containing the .exe file using the cd command or by specifying the full path.
cd C:pathtoyourfolder Run the .exe file by entering its name (without the .exe extension) and pressing enter.

Specifying Full Path Name of the EXE File

If you need to run an .exe file from a different directory, use the full path name of the EXE file. This is especially useful in cases where you're navigating within a different directory.

Programming with GNU: The GNU C Library: Getopt

If you are programming with GNU, you may need to parse command line arguments using a library like getopt. This function is part of the GNU C Library and provides an easy way to handle command line arguments in your C programs. For more information, refer to the document GNU C Library: Getopt.

Common Pitfalls and Best Practices

Your request seems to contain some contradictions. For instance, the file topology.txt is mentioned as both a data file to be used by your program and an executable file to be run. It is crucial to clarify your requirements to avoid confusion. Based on your description, it appears that the file name might be an argument passed to your program, which is to read data from the file. Here is a typical approach to setting up your C program:

Example of Main Function to Handle Command Line Arguments in C

If your program is called myprog, and your user is typing ./myprog topology.txt 30, you would set up your main function like this:

#include iostream#include cstdlibint main(int argc, char *argv[]){    if (argc ! 3) {        std::cerr 

Additional Resources for C Programming

For a more in-depth understanding, please consider reading some basic C tutorials. Additionally, I recommend the book Programming -- Principles and Practice Using C by Bjarne Stroustrup. It covers the main function and other essential concepts in C programming.