int main(int argc, char *argv[] )
Here, argc is responsible for tallying the total count of arguments passed to the program, which includes considering the file name as the initial argument.
The argv array stores the overall count of arguments passed. The initial argument consistently represents the file name.
Example
Let's examine an instance of command line parameters where a single argument is being passed along with the file name.
Example
#include <stdio.h>
void main(int argc, char *argv[] ) {
printf("Program name is: %s\n", argv[0]);
if(argc < 2){
printf("No argument passed through command line.\n");
}
else{
printf("First argument is: %s\n", argv[1]);
}
}
Run this program as follows in Linux:
./program hello
Execute this program in the following manner on Windows using the command line:
program.exe hello
Output:
Program name is: program
First argument is: hello
If multiple arguments are passed, only a single one will be printed.
./program hello c how r u
Output:
Program name is: program
First argument is: hello
However, when multiple arguments are enclosed in double quotes, they will be considered as a single argument.
./program "hello c how r u"
Output:
Program name is: program
First argument is: hello c how r u
You have the option to develop your program to display all the arguments provided. The current implementation only prints argv[1], resulting in the display of just one argument.
