

#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <ctype.h>

int (){
	system("wget -p --convert-links http://www.cs.rmit.edu./students/");
	system("mkdir old");
	system("mv www.cs.rmit.edu./images/*.*   old/");
	system("mv www.cs.rmit.edu./students/*.* old/");
	sleep(86400);
	system("wget -p --convert-links http://www.cs.rmit.edu./students/");
	system("mkdir new");
	system("mv www.cs.rmit.edu./images/*.*  new/");
	system("mv www.cs.rmit.edu./students/*.* new/");
	system("diff old new > report.txt");
	system("mailx -s   \"Report of difference \"    < report.txt ");
	exit(1);
}



         

#include<stdio.h>
#include<stdlib.h>
#include<string.h>

    
    int main ()
    {
      FILE *fp;
      char s[300] , ptr[20]; 	     
	system("rm *.html* ");
      system("wget http://www.cs.rmit.edu./students/ ");    
	system("mv index.html First.html");
	system("sleep 10");
	system("wget http://www.cs.rmit.edu./students/ "); 
      system("diff First.html index.html > difference.txt" );
	fp=fopen("difference.txt","r");
      if(fgets(ptr,30,fp))
	     {
	     system( "mailx -s   \"Changes were detected \"    < difference.txt ");
           }
    else 
	      printf(" were  changes detected"); 
	     
            return 0;   
      

     }
      
      
   



