hide a file

#include <stdio.h>

int main ()
{
   FILE * fp;
   char sentence []="Hello world";
   char *fileName="mylog.txt";
   char command[100];
   fp = fopen (fileName,"a");
   if(fp==NULL){
      printf("File cannot be open for writing %s", fileName);
      system("pause");
      return 1;        
}      
//write to file     
   fputs (sentence,fp);
   printf("Finish writing to a file\n");
   fclose (fp);
   //attrib +h will hide the file
 
   sprintf(command,"attrib +h %s",fileName);
printf(command);

printf("\n");
system(command);
   system("pause");
   return 0;
}