There are no other files named defaults.hlp in the archive.
The concept of "defaults," or command arguments assumed when you do
not specify a choice, is important for understanding TOPS-20. To
speed processing of commands and to help inexperienced users, the
system uses defaults when necessary for completing commands that you
give. By taking advantage of this defaulting action, you can make the
system work faster and more efficiently for you.
There are different kinds of default. When you give file
specifications as arguments to, say, the PRINT command, the system
assumes that you are referring to the highest (most recent) generation
of these files in your connected structure and connected directory.
By specifying a different structure, directory, or generation you can
override this default, but only if you already have the right
(established by user membership in a group, perhaps, or by a prior
ACCESS command) to do so.
When you give the INFORMATION BATCH-REQUESTS command without further
arguments, you are presented with a listing of all requests in the
batch input queue. The /USER switch allows you to limit this display
to the jobs of the user named. If you give the switch without
supplying a user name, your own user name is used as default. (But
the /USER switch to the related SUBMIT command has meaning for
privileged users only, who can use it to run batch jobs under other
user names; for non-privileged users this switch effectively defaults
to your own user name.) Only a few command arguments behave like the
/USER switch. The /TIME switch to the SUBMIT command is worth noting:
by not giving the switch, you set a time limit of 5 minutes; by giving
the switch without specifying a time limit, you are setting a 1-hour
limit; and you can set any other time limit by supplying it as
argument to the switch.
Note that none of the three switches to INFORMATION BATCH-REQUESTS and
INFORMATION OUTPUT-REQUESTS (/ALL, /FAST, and /USER) is used as a
default: each calls for a listing that differs in some respects from
that yielded by the unmodified command. However, the INFORMATION
LOGICAL-NAMES command, which allows keywords ALL, JOB, and SYSTEM, has
JOB as default for these. The list of arguments associated with each
command makes these choices clear.
To discover what default argument (if any) is established for a
switch, subcommand, or other argument, press the ESC key instead of
giving the argument: the default will be printed on your terminal.