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Program to get the GroupID ( GID ) information

Program to get the GroupID ( GID ) information

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>


int main()
{
        gid_t gid;
	
	if ((gid = getgid()) < 0) {
	  perror("
getgid error");
	} else {
	  printf("
The group id is : %d", gid);
	}

	if ((gid = getegid()) < 0) {
	  perror("
getegid error");
	} else {
	  printf("
The effective group id is : %d", gid);
	}

	printf("
");
	return(0);
}