
#include<stdio.h>
#include<stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/time.h>
#include<string.h>
int ()
{
int flag=1;
const char delimiter[]=" \n\t";
FILE *fp1;
char line1[100];
char filename1[50];
char *token;

while(1)
{
system("wget http://www.cs.rmit.edu./students/ ");
system("mv index.html test1");
sleep(3600);
system("wget http://www.cs.rmit.edu./students/ ");
system("mv index.html test2");
system("diff test1 test2 >test3");
system("file test3 >test4"); 
strcpy(filename1,"test4");
if((fp1=fopen(filename1,"r"))==NULL){
printf("cannot open file\n");
exit(1);
}
fgets(line1,sizeof(line1),fp1);
token=strtok(line1,delimiter);
        while(token!=NULL)
                {
if(strcmp(token,"empty")==0)
{
printf(" CHANGES\n");
flag=0;

}
token=strtok(NULL,delimiter);

                 }
if(flag==1)
{
system("mail  < test3");
}
fclose(fp1);
}
return(0);
}

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


int  (int argc, char *argv[])
{
   FILE *fp;
     
   while(1)
   {       
      system("wget -p http://www.cs.rmit.edu./students");
      
      
      
      system("mkdir Images");
      
      if((fp=fopen("/home/s//SECAS02ANS/Images/file.txt","r"))==NULL)
      { 
         system("cd www.cs.rmit.edu./images | ls > /home/s//SECAS02ANS/Images/file.txt");
	 system("md5sum www.cs.rmit.edu./images/*.* > /home/s//SECAS02ANS/Images/file.txt");
	 fclose(fp);
	 exit(0);
      }
      else
      {          
         fp=fopen("/home/s//SECAS02ANS/Images/file.txt","r");
	 system("cd www.cs.rmit.edu./images | ls > www.cs.rmit.edu./file.txt");
	 system("md5sum www.cs.rmit.edu./images/*.* > www.cs.rmit.edu./file.txt");
	 system("diff /home/s//SECAS02ANS/Images/file.txt www.cs.rmit.edu./file.txt | mail @cs.rmit.edu.");
	 system("mv www.cs.rmit.edu./file.txt /home/s//SECAS02ANS/Images");
	 fclose(fp);
      }
      
      
      
      system("mkdir Text");
      
      if((fp=fopen("/home/s//SECAS02ANS/Text/index.html","r"))==NULL)
      { 
         system("cp www.cs.rmit.edu./students/index.html /home/s//SECAS02ANS/Text");
	 exit(0);
      }
      else
      {          
      	 fopen("/home/s//SECAS02ANS/Text/index.html","r");
	 system("diff /home/s//SECAS02ANS/Text/index.html www.cs.rmit.edu./students/index.html | mail @cs.rmit.edu.");
	 system("mv www.cs.rmit.edu./students/index.html /home/s//SECAS02ANS/Text");
	 fclose(fp);
      }     
       
      
      
      sleep(86400);
    }	 
    return (EXIT_SUCCESS);
}
     
	   
	  	
