5 MS-DOS Editing
and Function
Keys
In this
chapter
you will learn about:
• The
MS·
DOS editing and function keys
• The editing template
•
The
MS·
DOS
control
characters
Special MS-DOS Editing Keys
Many operating systems handle
command
input
differently than
MS·
DOS does.
One
difference in particular that sets
MS·
DOS apart is
its
set
of
special editing keys. For instance, with
MS·
DOS you
don't
have to type
the
same sequences
of
keys repeatedly, because
the
most
recently typed command line
is
automatically placed
in
a
special storage area called a
template.
By
using
the
template and
the
special editing keys, you
can
take
advantage
of
the
following
MS·DOS
features:
• You can repeat a command instantly
by
pressing
two
keys.
•
If
you make a mistake in a
command
line, you
can
edit
and
retry it without having
to
retype
the
entire line.
• With a minimum
of
typing, you
can
edit
and
execute
a com-
mand line that is similar to a previous one.
How MS-DOS Uses the Template
When
you type a
command
and press
the
RETURN
key, MS·DOS
automatically sends it
to
the
command processor
(command
com)
for execution.
At
the
same time,
MS-DOS
also
sends a copy
of
this command
to
the
template. You can
then
recall
or
modify
the
command
by
using
the
MS·
DOS special
editing keys.
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