#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 <errno.h>

int () {

 while (1) { 

    system("wget -p www.cs.rmit.edu.");\

    system("mkdir sitefiles");

    system("cp www.cs.rmit.edu./index.html sitefiles");
    system("diff sitefiles/index.html www.cs.rmit.edu./index.html | mail @cs.rmit.edu.");

    system("md5sum www.cs.rmit.edu./images/*.* > imageInfo.txt");
    system("diff imageInfo.txt sitefiles/imageInfo.txt | mail @cs.rmit.edu.");

    system("cp imageInfo.txt sitefiles");
    sleep(86400);
  }
 
}
