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

int main()
{
        printf("Opening for read!!!\n");
        int file1=open("file1",O_RDONLY);
        printf("Opening for read!!!A\n");
        int file2=open("file2",O_WRONLY);

          int i=0;

                printf("Opening for read!!!1\n");
                read(file1,&i,sizeof(int));
                while (i<=100)
                {
                  i++;
                  write(file2,&i,sizeof(int));
                  printf("%d\n\t",i);
         }
                        printf("Opening for read!!!3\n");
        close(file1);
        close(file2);

        return 0;

}





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

int main()
{
        printf("Opening for read!!!\n");
         int file1=open("file1",O_WRONLY);
        printf("Opening for read!!!A\n");
        int file2=open("file2",O_RDONLY);
//      int file2=open("file2",O_iRDONLY);

        int i=0;

        printf("Opening for read1!!!\n");
        read(file2,&i,sizeof(int));

        printf("Opening for read!!!4\n");
        while (i<=100)
                {
                 i++;
                write(file1,&i,sizeof(int));
                printf("%d\n\t",i);
                }
        printf("Opening for read!!!2\n");
        close(file2);
        close(file1);

        return 0;

}