Tandy TRS-80 Owner Manual & Programming Manual page 29

YOU'RE THE BOSS
The
first
one copies a disk
file.
You
should,
at this
point,
have
a
program
file
stored
in
the disk
in
drive
named "NEW/NAM." Make
a
COPY
of
it.
Type:
COPY "NEW/NAM:0"
TO
"NEW/NAM:
1"
(ENTER).
If
you want, you can
rename
the
file
when
you
copy
it.
For
instance,
COPY
"
NEW/NAM
:
1" TO
"ANOTHER/NAM :0"
(ENTER)
copies
"NEW/NAM"
from
the disk
in
drive
1
to
the
file
"ANOTHER/
NAM"
on the
disk
in
drive
0.
The
second
command
changes
the drive
number
the
Computer
goes
to
if
you
do not specify
one.
Up
to
now,
this
has been
drive
0.
For example, by
typ-
ing
SAOE
"ANYTHING/EX"
(ENTER),
the
Computer
will
assume you
want
to
use drive
0. It
will
then
SAVE
this
program on
the disk
in
drive
0.
To
change
this
assumption, you can
type:
DRIVE
1
CENTER)
This
makes
the
Computer assume you want
it
to
use
DRIVE
1,
unless
you
tell
it
otherwise.
After
changing
this
DRIVE
assumption, the
Com-
puter
will
respond
differently
to
the
same
com-
mand.
By
typing SAUE "ANYTHING/EX"
(ENTER)
,
the
Computer
will store
"ANYTHING/EX"
on the
disk
in
drive
1.
You would now
need
to
type SAVE
"ANYTHING/EX
:
0"
(ENTER] to
SAVE
it
in
drive
0.
CHAPTER CHECKPOINT
1.
How
do you rename
a
file?
Why
do
you
have
to
specify the
file's
extension?
2.
What
can
you do
when you
think you're
running out of disk space?
3.
If
you have more
than one disk drive
and
do not
specify the drive
number, which
drive
will
the
Computer
use?
How
can
you
change
this?
Congratulations.
You
are
now
a bonafide disk
sys-
tem
operator.
You
should
now
have
a good under-
standing of
how
your
disk
system works and
how
to
take
full
advantage
of
it.
21