#include<stdio.h>
#include<string.h>
#include<strings.h>
#include<stdlib.h>
#include<sys/time.h>


public static void main()
{
	int i;
	char ar[100];
	FILE* f;
	FILE* ;
	system("wget -O first www.rmit.edu./students");  
	while(1)
	{
		sleep(86400);	
		system("rm -f thed");
		system("rm -f new");
		system("wget -O new www.cs.rmit.edu./students");	
		system("diff new first >thed");	
		f=fopen("thed","r");
		if(fgets(ar,100,f)!=NULL)
		{		
			 printf("\n\n The  has CHANGEDS");		
			system("mail @cs.rmit.edu. <thed"); 
			system("cp new first");
			fclose(f);
		}
		else
		{
		fclose(f);
		printf("\n\nthe  has not changed ");
		}
	}

}

	
	
	
		



#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/wait.h>
#include <sys/time.h>



void emptyFile(char* name)
{
	FILE* myFile;
	myFile = fopen(name,"w");
	fclose(myFile);
}

int (void)
{
	FILE* myFile;
	char* myString;
	
	myString = malloc(sizeof(char ) * 100);

	
	
	emptyFile(".old.html");
	emptyFile(".new.html");

	
	system("wget -O .old.html -q http://www.cs.rmit.edu./students/");

	while(1)
	{
		
		emptyFile(".new.html");

		
		system("wget -O .new.html -q http://www.cs.rmit.edu./students/");
		
		
		system("diff .old.html .new.html > watch.txt");

		myFile = fopen("watch.txt","r");
		if(myFile != (FILE*) NULL)
		{
			fgets(myString,100,myFile);
			if(strlen(myString) > 0)
			{
				
				
				system("mail @cs.rmit.edu. < watch.txt");
				
				system("cp .new.html .old.html");
			}
		}
		
		sleep(60*60*24);
	}
	
	return 1;
}


