Radio Shack CCR-81 Owner's Manual

M
ATTRIB PAYROLL (I »ACC=PAYDAY »UPD=AMOCADO »PROT=READ
)
Now tell the clerk to use the password payday
(which
allows read only); while
only you
know the
password,
avocado, which
grants total access to the file.
Protecting BASIC Programs
You may
give a basic program execute-only protection using the attrib
command.
For example,
suppose the
program is named test (no password).
Under
trsdos ready, execute this command:
ATTRIB
TEST < ACC= »UPD=UALLEY »PR0T=EXEC>
Now
test has a blank access password, an update password of
valley,
and
an
access
level of execute only. Without using the update password, there is now
only one
way to execute the program:
1. Start basic.
2. Type:
RUN "TEST"
(This
is the only way to access the program. If the operator attempts to load
it
instead, basic will erase the program from memory before returning with
READY.)
After the
run "test" command, basic
will
load and execute the program. If
the
operator presses (BBEM) or if the program ends
normally, basic will erase
the
program
before returning
with
the ready message. This makes
it impossible
to
obtain a
listing of the program —unless the update
password
is used.
Of
course, if you use the update
password,
you
may gain full access to the
program.
AUTO
Automatic
Command after
System
Start-up
Aijio comma
nd*
ling
sommsm-llm gives trsbos
a
mmm&m m Vm
name
of
an
esesutable
program tile orealac!
sy
build.
n
csmmand-iine is given, ths mmmnm ml
m
sxeouted
m
reset/
if
command-line
is
oml'isti, the prswioys auto mmmmi
Is srsssd
from
the
diskette.
29

Radio Shack CCR-81 Specifications

General

Brand	Radio Shack
Model	CCR-81
Category	Desktop
Language	English