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GENERAL SYSTEM OPERAiION
2.5 -- System Console
feedback that the line was cancelled.
2. 5. 5 DEL or RUBOUT
The
DEL
or
RUBOUT
key serves as a backspace key during
console input.
I~
the
operator
detects
an
error
in
the
current
input
line (beTore a carriage return is depressed)J
the DEL key will cause the preceding character to be
removed
from
the
input line.
The character that is removed will be
echoed back to
the
console
so
that
the
operator
has
a
positive
feedback
that
a
character
was backed out of the
line.
2.5.6
Control-D
ContTol-D is actually a combination of
two
keys
being
depressed
simultaneously:
the CONTROL or
CTL key
and the
D
key.
This combination allows the
op~rator
to re-display
the
current
input
line (before a terminating carriage return is
depressed).
If the input line
has
had
several
characters
b a
c ked
0
u
t
(s e
e
DEL
key
abo
v
e )
1
the
1
in e i s
v
e r y un rea dab
1
e.
Th
e
CTL-D
k
e\j can:
th
erefore,
be used
to sh
ow
a .. clean
II
cop
Y
of
the
line
for
operator inspection.
The newly displayed
line will be shown on the line following
the
current
input
line.
Operator
input is not terminated with the CTL-D key.
Any remaining input must still be suppliedl as
well
as
the
terminating
car~iage
~eturn.
2.6
Common
Erro~
Messages
Many error messages are common to the MDOS commands.
In
order
to
be
aware
of
the
most
common
errors,
their
desc~iptions
are included here.
These common error messages
will be recognizable to the operator since they are
prefaced
with
a
pair
of
asterisks
<**)
and a two-digit reference
number.
Each
command
may,
in
addition,
have
a
set
of
specific
error
messages that will not be displayed by other
commands.
These specific error messages will
not
have
the
aste~isks
or
two-digit
refer~nce
number.
Such messages are
explained along with
each
command's detailed
description
in
PART
II.
A
summary
of the
standa~d
error messages can be
found in Chapter 28.
Ine messages are listed there in
order
of their two-digit reference
numbe~so
WHAT?
The
first
name
entered on the command line was
not
the
name'
0
f
- a
f
i 1
e
i n ' the
dis
k
e
t
t
-e '
s'
directory.
Most
oTten this error occurs as the
result
o~
a mistyped command name.
Page
02--09
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