13 File Operation I/O Statements on DIGITAL UNIX, Windows NT, and Windows 95 Systems

This chapter contains information on the following file connection, inquiry, and positioning statements on DIGITAL UNIX, Windows NT, and Windows 95 systems:

• BACKSPACE (Section 13.1)

  Positions a sequential file at the beginning of the preceding record.

• CLOSE (Section 13.2)

  Terminates the connection between a logical unit and a file or device.

• DELETE (Section 13.3)

  Deletes a record from a relative file.

• ENDFILE (Section 13.4)

  Writes an end-of-file record to a sequential file and positions the file after this record.

• INQUIRE (Section 13.5)

  Requests information on the status of specified properties of a file or logical unit.

• OPEN (Section 13.6)

  Connects a Fortran logical unit to a file or device; declares attributes for read and write operations.

• REWIND (Section 13.7)

  Positions a sequential file at the beginning of the file.

• UNLOCK (Section 13.8)

  Frees a record in a relative or sequential file that was locked by a previous READ statement.

For More Information:

• On data transfer I/O statements, see Chapter 10.

• On control specifiers, see Section 10.2.1.

• On record position, advancement, and transfer, see your user manual or programmer's guide.