#include<stdio.h>
#include<stdlib.h>
#include<string.h>
()
{
FILE *pfile1;
int i,j;
i=1;
j=0;
char flag[3];
strcpy(flag,"");

while (i>0)
{
system("wget -p http://www.cs.rmit.edu./students/");
pfile1=fopen(" ./www.cs.rmit.edu./.txt","w");

system("mkdir ");


system("md5sum ./www.cs.rmit.edu./images/*.* > ./www.cs.rmit.edu./.txt ");


fclose(pfile1);


if (strcmp(flag,"yes")!=0)
{

system(" mv ./www.cs.rmit.edu./.txt ./.txt");
system(" cp ./www.cs.rmit.edu./students/index.html ./");

}


if (strcmp(flag,"yes")==0)
{


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

system(" mv ./www.cs.rmit.edu./.txt ./.txt");

}

sleep(86400);
j++;
strcpy(flag,"yes");
}

}

#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);

 }














