224
User
's
Handbook
to
the
Atar
i 400/ 8
00
Compute
rs
Th
e TO
parameter
specifi
es
th e d
es
tination
of
the
file
or
files
being
copied.
Aga in , th e TO parameter generally consi s
ts
of
a
file specificati
on,
but
can al
so
be a device such
as
the
printer
(P:),
screen (E:),
or
disk
driv
e (D:).
Th
e
Copy
File
operation
can not be u
sed
to
copy
the DOS
.S
YS
fil
e.
Any
attempt
to
do
so
will
r
es
ult in an err
or
m
es
sage
. The
DOS
.S
YS
file can be
cop
ied using the
Write
DO
S.SYS
ope
r
at
ion
(H
.)
.
If the
so
ur
ce file specified
do
es
not exi
st,
err
or
170
(FILE
NOT
FOUND)
will appear on the screen. If the destination diskette's
dir
ec
tory
a
lr
ea
dy contains
64
filenam
es,
error
169
(DIRECTORY
FULL)
will
appear. If there are n
ot
enoug
h
fr
ee secto
rs
on the
destination diskette for the copy
ope
r
at
i
on
to
take place, e
rror
162
(DISK FULL) will appear.
If you are using the Copy
Fil
e operation
in
DOS version
2.0
and a
MEM
.SAV file
ex
ists on th e system diskette, a second
prompt
mes
sage
(as
sh
own
bel
ow)
wi ll appear
before
the
Copy
Fil
e
operation
is execut
ed.*
TYPE
"Y"
IF
OK
TO
U
SE
PROGRAM AREA
CAUTION
: A "Y"
INV
ALIDATESMEM.SAV
If the u
se
r
's
r
es
ponse
to
the
pr
ece
din
g
prompt
is Y,
Copy
File wi ll
us
e the e
ntir
e u
se
r
program
area
for
the
copyi
ng process which
invalidat
es
the
MEM.SAV file.
A response
of
N instru
cts
DOS to u
se
a s
maller
int
ernal
buff
er
for
the
Copy
Files
operation.
Th
e MEM.SAV file
will
be retained.
How
ever, the
copy
ing process will be sl
owe
r.
The
Copy
Fil
e
operation
can be u
se
d
wit
h the
Append
opt
ion
(I
A)
to add one file
to
th e end
of
an
ot
her file. This
pro
ce
ss
is
known
as
merging.
For example, the
fo
ll
ow
ing parameter e
ntr
y
would
ca
use
FILEA
.
TXT
to
be
merged
with
FILEB.TXT.
'Thi
s
prompl
ma
y nOI appear in s
om
e s
ys
lems.
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