File Manipulation Routines
CLOSE [, unit
1, ... , unit
n]
Closes the specified file units.
Tests the specified file unit for the end-of-file condition.
FINDFILE (file_specification)
Returns a string array containing the names of all files matching a specified file description.
Causes all buffered output on the specified file units to be written.
FREE_LUN, unit
1, ..., unit
n Deallocates file units previously allocated with GET_LUN.
Returns an expression containing status information about a specified file unit.
Returns an expression containing status information about a specified file unit. Used for large files (>2.5 gigabytes).
Allocates a file unit from a pool of free units.
LFPOINT_LUN, unit, position
Allows the current position of the specified file to be set to any arbitrary point in the file. This routine is for large files (>2.5 gigabytes on supported platforms only).
OPENR, unit, filename [, record_length]
OPENR (OPEN Read) opens an existing file for input only.
OPENU, unit, filename [, record_length]
OPENU (OPEN Update) opens an existing file for input and output.
Opens a file on the internet to be accessed using PV‑WAVE. 1
OPENW, unit, filename [, record_length]
OPENW (OPEN Write) opens a new file for input and output.
Extracts specified parts of a full file pathname.
POINT_LUN, unit, position
Allows the current position of the specified file to be set to any arbitrary point in the file.
