It
is
better
to
keep to the habit
of
mounting and removing the tape through
the System Display. Before carrying out a directory operation on the Microcas-
sette drive, use the System Display
to
check
if
the tape
is
mounted.
If
it
is
not
mounted, mount it through the System Display.
WARNING:
NEVER
try to obtain the directory
of
a Microcassette tape when another
tape is already mounted. The directory
of
the second tape must be loaded
into memory before the directory can be printed. This can only be done
by
removing the first tape and then mounting the second tape.
h) Pausing a DIRectory
Either the
I
PAuSElkey
or I
CTRL
I-[§]
can be used to pause a DIRectory as it
is
displayed.
If
a directory has scrolled
off
the screen in screen modes 0,1 or
2,
it
can be seen by using the shift cursor keys ( [!] and m
).
i)
Printing a DIRectory
To obtain a hardcopy
of
a DIRectory, use I
CTRL
I -
~
before issuing the DIR
command or use the screen dump facility (
I
CTRL
I and the I PF5 I key).
j)
Stopping the DIR
If
any key
is
pressed during execution
of
this command it
is
terminated and
the
CP/M
command line reappears.
3-20
3.7.2
ERA
(Erasing files)
Files can be erased
at
any time using the ERA command. The command
is
used
in a similar way
to
the DIR command and the rules about spaces apply equally.
It
is possible to set files
to
be Read/Only files. Files which have been set to
Read/Only cannot be erased.
If
you really do want to erase them you can use
the STAT program
to
set them to Read/Write.
In
fact ERA does not really
erase the file from the disk - it simply removes the directory entry for it.
Files
on
the ROM drives cannot be erased.
If
an
attempt
is
made to erase a
file
on
a drive which
is
set
to
Read/Only, one
of
the following error messages
will be displayed:
BDOS ERROR ON dr:FILE
R/O
BDOS ERROR ON
dr:R/O
will occur. The particular drive name
"dr:"
will be printed as the drive name
accessed.
If
this does occur you should press I
CTRL
I -
(g
, I
STOP
lor I
RETURN
I .
a) Erase a specific file on any drive
To
do this you simply specify the full filename and extension
of
the file you
wish
to
erase:
D > ERA TESTING. COM
D>
C > ERA A:WASTE.FIL
C>
If
the file
is
not present the
"NO
FILE"
message will be printed.
C>
ERA DUDFILE.COM
NO FILE
C>
\
3-21
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