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Section C:
Ce2. Programs with a Command Line
Utility Programs
*******************************
*
Utility Programs
*
*******************************
The other kind of utilities looks different: You
invok~
them by typing
a
complete command line.
If you are using the SHEL,L menu
program,
those
are
the programs which require additional parameters besides
selecting
i terns from the menu.
A
typical command input could look. like this.:
$SET
*·*~SYSTEM
C. 2 .1.
Options
Many
of the "command line" prog.rams may further be controlled by
addi-
tional options. Options are specific command words beginning either with
a
plus "+'' or a minus ''-" character.
However,
it is not necessary
to
specify
options,
as
the name implies.
If an option
should
miss,
a
default is selected automaticaLly.
Options
may
appear anywhere within a command line (except
before
the
command name, i.e. as the first word). You need not type the entire name
of the option, the first character is fully sufficient. For example, the
command:
$SET*.* +SYSTEM+
~ACKUP
$SET +S *.* +B
has the same effect as
What do the plus and minus signs mean?
Well,
options can be activated,
or the can be disactivated. If you type a plus, the corresponding option
is validated,
if you type a minus, it is invalidated. The various prog-
rams have different defaults for their options.
By default,
an
option
can be "switched on",
or it can be switched off. More details are to be
found in the following chapters.
EOS User's manual
Daeumling & Zimmermann
Page 46
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