How to write a C program, that prints its executable/binary file name on execution?

Question

Code should compile and print out itself.

Answer 1

Try this ,

#include <stdio.h>

int main(int argc,char *argv[])
{
    printf("executable name %s\n",argv[0]);
    return 0;
}

Answer 2

#include<stdio.h>
#include<string.h>
main(int argc,char **argv)
{
  char ch[20];
  ch = strtok(argv[1],".");
  strcat(ch,".o");
  printf("executalbe file name is %s\n",ch);
}