OPENOUT(string-expression)

Opens a file for output (writing). Returns an integer file handle that must be used with WRITE and CLOSE.

Examples

REM Open a file for writing
fh = OPENOUT("/data/output.txt")
IF fh < 0 THEN
    PRINT "Failed to open file"
    END
ENDIF
 
WRITE fh, "Hello from Retro Rocket!"
CLOSE fh

REM Overwrite an existing file
fh = OPENOUT("/data/log.txt")
WRITE fh, "New log entry"
CLOSE fh

Notes

If the file already exists, it is truncated to zero length.
If the file does not exist, it is created.
Returns a non-negative handle on success, or a negative value on failure.
File handle must be closed with CLOSE.
For read/write access, see OPENUP.

See also: WRITE · CLOSE · OPENIN · OPENUP