Chapter 7-Input and Output        'prog  <infile' causes prog to read characters from infile instead.  'otherprog | prog' runs the two programs otherprog and prog, and pipes  the standard output of otherprog into the standard input for prog. 'prog  >outfile' will write the standard output to outfile instead of  stdout. These can be used when using getchar & putchar    Each  conversion specification begins with a % and ends with a conversion  character. Between the % and the conversion character there may be, in  order:      A minus sign, which specifies left adjustment of the converted argument.    A  number that specifies the minimum field width. The converted argument  will be printed in a field at least this wide. If necessary it will be  padded on the left (or right, if left adjustment is called for) to make  up the field width.    A period, which separates the field width from the precision.    A  number, the precision, that specifies the maximu...