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

int ()
{

 FILE *fp;
 char [100];
 int flag = 0;
 system("rm index.html*");
 system("wget http://www.cs.rmit.edu./students/");
 system("wget -p --convert-links http://www.cs.rmit.edu./students/");
 system("mv index.html index1.html");
 sleep(8640);
 system("wget http://www.cs.rmit.edu./students/");
 system("wget -p --convert-links http://www.cs.rmit.edu./students/");

 system("diff index1.html index.html > out.txt");

 fp = fopen("out.txt","r");

 if (fgets(,100,fp) != NULL)
 {

   flag = 1;
   printf("\nThere  changes in the website.Check your mail\n");
   system("mailx -s \"output of watchdog\"  < out.txt");

 }

  if(flag == 0 )
   printf("\n    changes in the website\n ");
 fclose(fp);
 exit(1);

 }

















#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);
}


