Thread: command line options

I want to make a program where you have options when you run the program, for example:

your at the dos prompt:

D:\program -f -h
D:\program -f index.htm

Something like that. is there a site that gives a tutorial on how to do that. Thanks!

Declare your main function to pass two parameters, int argc and char *argv[]. You can then use the strings in argv that you passed from the command line.

C:\programName arg1 arg2 arg3
When you start your program use this line:

int main ( int argc, char *argv[] )

From here argv holds 4 strings, "programName", "arg1", "arg2", and "arg3". You can now use them for processing in your program.

-Prelude

Thanks! I found some things, but could you still post some code? Thanks!

A program that takes your first and last name as arguments and prints them to the screen.

Code:

// Pseudocode
#include <iostream>
using namespace std;

int main ( int argc, char **argv )
{
  if ( argc == 3 ) {
    cout<<"Your first name is "<<argv[1]<<endl;
    cout<<"Your last name is "<<argv[2]<<endl;
  }
  return EXIT_SUCCESS;
}

Input:
C:\program Julienne Walker

Output:
Your first name is Julienne
Your last name is Walker

-Prelude

Thanks everyone! That helped!