• ELLIPSIS
. . , a
sequence ol
three
dots,
means lhal an option or
argument can be
repealed mote than once.
• QUOTATION MARKS
" '
enclose character strings, filenames, and
other expressions When
arguments are enclosed in quotation marks in
a
formal,
you
musl include the quotation marks in your command 0(
statement. Quotation marks are required parts of a
command or
statement
• PARENTHESES When
arguments
are
enclosed in parentheses In
a
format, you must
include the parentheses in your command
or
statement. Parentheses are also required when they appear »n a
command or statement description.
• VARIABLE refers
to
any
valid
BASIC variable name, such as X.
A$.
orT%
•
EXPRESSION
means any valid BASIC expression, such as A+B+2
or
5*(X+3)
BASIC COMMANDS
AUTO
AUTO [line*
J
Turns on the automatic
line numbering feature which
eases
the job of
entering programs
by
typing the line numbers for you. As you
enter
each program line and press retubn the next
line
number
is printed
on
the screen, with the cursor
In position
to
begin typing thai line. The
[line#J argument relers to the
increment between line numbers. AUTO
with NO
ARGUMENT turns
oft auto
line numbering, as does
RUN This
slatement is executable only In direct mode
EXAMPLES
AUTO 10
AUTO 50
AUTO
automatically numbers line in increments
o(
ten
automatically
numbers
line In increments of
fifty
turns OFF automatic line numbering
96
I
f
f
BACKUP
BACKUP Ddnve* TO Ddrive*
|,
ON Uunrt#|
This command copies all the
Dies
on a
diskette
to
another
diskette on a
dual drive system. You can copy onto a new
diskette
without first using
the HEADER
command
to
format
the new diskette because the
BACKUP command copies al> the information on the diskette,
Including
the
format. You should always BACKUP important diskettes In case
the
original
is lost or damaged
Because the
BACKUP command also HEADERS diskettes, II destroys
any
information on
the
diskette onto which
you're copying information
So it you're
backing
up
onto a
previously
used
diskette, make sure it
contains no programs you
wish
to keep. See
also the COPY
command
NOTE: This command
can only
oe
used with
dual disk drive.
EXAMPLES:
BACKUP DO TO Dl
BACKUP DO TO Dl , ON U9
Copies all files from the disk in
drive
to
tne disk in drive
1
Copies all files from drive C to drive
1 In disk
drive
unit 9
COLLECT
COLLECT
[Ddrive#]
|,ON Uuml#l
Use
this command to free
up space
allocated to improperly
closed files
and deieles references
to
these files from the directory
97
To Next Page
Loading...
