File Handling

A file represent a sequence of byte on the disc,where a group of related data is stored.

File is created for permenant storage of data.

It is redimade structure.In 'C', we use a structure pointer of a file type to declare a file.

1. Create a new file
2. Open an existing file
3. Writing to the file
4. Reading from the file
5. Apending to the file
6. Seeking perticuler position in a file
7. Close an opened file

   Function         Discription

     Fopen()    -        creates a new file or open an existing file

     fclose()   -        closes a file
 
     getc()     -        reads a character from a file
 
     putc()     -        write a character to a file

     fscanf()   -       reads a set of data from a file

     fprintf()  -        writes a set of data to a file

     getw()     -        reads a integer from file

     putw()     -        writes an integer to a file
 
     fseek()    -        set the position to a desire point

     ftell()    -       returns current position in the field

     rewind()   -        set the position to the begining point