C Program to Add two numbers using Command Line Arguments Parameters

C Program : C Program to Add two numbers using Command Line Arguments

#include<stdio.h>
void main(int argc , char * argv[])
{
    int i,sum=0;
    if(argc!=3)
      {
      printf("you have forgot to type numbers.");
      exit(1);
      }
    printf("The sum is : ");
    for(i=1;i<argc;i++)
        sum = sum + atoi(argv[i]);
    printf("%d",sum);
}

Output :

The sum is : 30

Steps to be followed to execute program using Command Line Argument inside Borland C/C++ Compiler :

• Step 1 : Write a Program
• Step 2 : Open Command Prompt inside Borland C/C++.
• Step 3 : Click on DOS Shell.

• Step 4 : Inside Command Prompt type this command.

C:\TC\BIN>add 10 20

• Step 5 : Hit Enter , You will get following Output.

C:\TC\BIN>add 10 20
The sum is : 30
C:\TC\BIN>

• Step 6 : Type “exit” command to return to Turbo C/C++ Screen

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