(g77.info)I/O

 I/O
===

   A dollar sign at the end of an output format specification suppresses
the newline at the end of the output.

   Edit descriptors in `FORMAT' statements may contain compile-time
`INTEGER' constant expressions in angle brackets, such as
     10    FORMAT (I<WIDTH>)

   The `OPEN' specifier `NAME=' is equivalent to `FILE='.

   These Fortran 90 features are supported:
   * The `O' and `Z' edit descriptors are supported for I/O of integers
     in octal and hexadecimal formats, respectively.

   * The `FILE=' specifier may be omitted in an `OPEN' statement if
     `STATUS='SCRATCH'' is supplied.  The `STATUS='REPLACE'' specifier
     is supported.