HP 3000 Manuals HP 3000 Manuals
Lesson 2 Using Variables and Expressions
Q 6-8 The method of dereferencing used in the two ECHO
statements of the STATS command file is explicit
dereferencing (exclamation points are used).
Q 6-9 To give the three user-defined variables, USER,
GROUP, and ACCT, the same values as those currently
stored in the system-defined variables,
HPUSER,HPGROUP, and HPACCT, you would do the
following:
SETVAR USER, HPUSER
SETVAR GROUP, HPGROUP
SETVAR ACCT, HPACCT
Q 6-10 According to the IF-THEN statement in the STATS
file, the following messages are displayed in each
of the following situations:
a. The current number of jobs is 10 and the job
limit is 12.
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| ***APPROACHING JOB LIMIT --- STREAM JOB LATER*** |
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b. The current number of jobs is 5 and the job
limit is 10.
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| ***NUMBER OF JOBS IS STILL REASONABLE --- STREAM JOB NOW*** |
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Exercise 6-2: IF-THEN-ELSE Statement
1. Your IF-THEN-ELSE statement should look like this:
IF HPSESCOUNT >= (HPSESLIMIT*3)/4 THEN
SHOWVAR HPSESCOUNT
SHOWVAR HPSESLIMIT
ECHO ***TOO MANY PEOPLE ON SYSTEM --- LOG OFF NOW***
ELSE
SHOWVAR HPSESCOUNT
SHOWVAR HPSESLIMIT
ECHO *** CURRENT SESSION LIMIT NOT EXCEEDED ***
ENDIF
****************** End of Exercise 6-2 *************
Q 6-11 As long as you respond with anything other than //,
you will be prompted continually for file names.
Q 6-12 To terminate being prompted for any more file
names, you must respond with //.
Exercise 6-3: WHILE Loop
1. Your CF command file should look like this:
INPUT RESPONSE;PROMPT="Do you want to change the prompt? (Y or N): "
IF RESPONSE = 'Y' THEN
SETVAR MYRESP 'N'
WHILE MYRESP = 'N' DO
INPUT HPPROMPT;PROMPT="Enter your new prompt (10 char. max): "
ECHO !HPPROMPT
INPUT MYRESP;PROMPT="Is this prompt OK? (Y or N): "
ENDWHILE
ELSE
ECHO Current prompt remains in effect !HPPROMPT
DELETEVAR RESPONSE,MYRESP
2. When you enter your final prompt, this prompt should be displayed:
USERx:
3. Use this command to change HPPROMPT to the initial system prompt:
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| SETVAR HPPROMPT,":" |
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************ End of Exercise 6-3 ************