The ST() function returns the status after the last input-output operation, for example during a disk or tape read or write.

DECLARE FUNCTION ST AS BYTE () SHARED STATIC INLINE

REM -- dump raw contents of a file
DIM char$ AS STRING * 1
CONST EOF = 64
OPEN 2, 8, 2, "filename"
DO WHILE ST() <> EOF
  GET #2, char$
  PRINT char$;
LOOP
CLOSE 2

• OPEN
• GET#
• INPUT#
• PRINT#
• READ#
• WRITE#
• CLOSE