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3.4 -- File Appending
the
"A"
option
to
indicate
an automatic procedure in the
event
of
file
name
duplication.
The
"Y"
option
will
automatically
cause an attempt to be made to delete the file
on the destination diskette before the copy takes place.
If
the
"Y"
option
is
in
effect,
the
file name duplication
message from above takes on the following form:
<name> -
DUPLICATION:
IS COPYING
to indicate that a
"V"
was given as an automatic response
to·
th
e
II
IS
T,.
TO BE COP lED?"
port
i
on of th e messag e.
Th
e ..
Z
u
option
~ill
cause the file name duplication message
to
take
on the form:
<name> -
DUPLICATION:
IS NOT COPIED
to indicate that an
"Nil
was given as an automatic response to
the "IS IT TO BE COPIED?" portion of the message.
The rile append process causes space to be allocated
on
the
destination
diskette
in
contiguous
blocks.
IP
inSUTricient
contiguous
space
should
remain
on
the
destination
diskette
for
a
given file}
the file will not be
copied.
The el'1"or message
OB~ECT
FILE CREATION COPY ERROR
will be displayed and the BACKUP
command
will be
terminated.
The
destination
diskette
may
have
sufficient
space
to
accommodate
the
rile;
howeve~1
iT
the
space
is
not
contiguousl
the
above
errol' OCCUl'S.
To copy the
fileJ
the
destination
diskette
should
be
run
thr~ugh
the
file
reorganization
process described in section 3.3,
or the rile
must be copied via the COpy command (Chapter 7).
After
the
last
file
has
been
copied
to
the
destination diskette,
control
will
be
returned to
MDOS.
3.5 Diskette
Ve~irication
The
Ma
in
0
p t ion
tf
V
It
in v
0
k est h eve r
i
r
y
pro
c e s
S O T
the
BACXUP
command.
The verify process allows a physical sector
comparison to be made between the diskettes in the source and
destination
drives.
The following command line, without the
presence of otheY' options; will cause the verify
process
to
compare
the
diskettes' physical
secto~s
based on the source
diskette's allocation table:
BACKUP :
<s-unitJI :<d-unit>iV
If
any
bytes in any sectors fail to compare,
a sector message
and
a
list
of
all
offsets within the sector that did not
compare is printed:
--......
\
J
../
Page
03-10
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