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Reading the file catalogue
As you establish files in a cartridge
they are automatically
catalogued.
So,
when you want to find out what files a cartridge
contains,
you need only
insert the cartridge
into a Microdrive
and enter the CATalogue
statement.
For example,
enter:
CAT 1
The television
screen will display:
- the cartridge
name,
-
the file names,
- the amount
of memory
left in the cartridge,
(in kilobytes).
You can also send the output
of CAT to a stream by entering:
CAT # number;number
I
\
This enables you to rend the catalogue
to a printer,
or to a file, so that a
program
can use it.
Protecting a file
If you do not want a file name to appear on the catalogue,
you can
protect
it by giving it a name beginning
with the character
whose CODE
is 0. Enter this:
10 OPEN #4,"m";l;CHR$0+"Results"
20 FOR n=l TO 15
30 PRINT
#4;n,n)cn
40 NEXT
n
50 CLOSE +4
Now enter:
CAT 1
The file name will not appear. So, whenever
you create a protected
file.
remember
to make a note of its name somewhere,
in case you forget it
later!
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