Apple IIe - Disk Operating System (DOS) Commands

Cassette
and
Disk Storage with
the
Apple
lie
189
Error
Message Format
--
DOS,
Applesoft,
lnterger
If
an
incorrect
command
is
entered
, an
error
message
will
be
generated.
The
format
of
the
error
message
will
indicate
whether
that
error
was generated
by
DOS,
Integer
BASIC,
or
Applesoft
BASIC.
If
a
question
mark
precedes
the
error
message,
the
error
was
generated
by
Applesoft
BASIC
as
indicated
in
the
following
example:
?
SYNTAX
ERROR
-Applesoft
BASIC
If
three
asterisks
precede
the
error
message,
the
error
was
generated
by
Integer
BASIC
as
shown
below
:
***SYNTAX
ERROR-Integer
Basic
If
no
prefix
precedes
the
error
message,
it
was generated
by
DOS.
The
following
error
message
would
be
displayed
under
DOS:
SYNTAX
ERROR-DOS
DOS COMMANDS
In
the
following
sections
we
will
discuss
the
usage
of
the
various
Apple
DOS
commands. These
include
:
APPEND
BLOAD
BRUN
BSA
VE
CATALOG
CLOSE
DELETE
EXEC
INIT
LOAD
LOCK
MAX
FILES
MON
NOMON
OPEN
POSITION
READ
RENAME
RUN
SAVE
UNLOCK
VERIFY
WRITE