HP 3000 Manuals

MPE V to MPE XL: Getting Started

Answers to Exercises 

1.   CI Return 

2.   SHOWVAR hpcidepth

3.   Each time you enter the EXIT command, you return to the previous CI
     level, until you reach the root level, at which point the EXIT
     command ends your session.  BYE ends your session regardless of what
     level of the CI you are in.

4.   EXIT Return EXIT Return  or BYE Return 

5a.  CI Return CI Return CI Return 

5b.  SETCATALOG can only be executed from the root level of the command
     interpreter.  You would get an error message:  THIS COMMAND CAN ONLY
     BE EXECUTED FROM THE ROOT CI.  (CIERR 9063).

6a.  SETVAR A, 3
     SHOWVAR A

6b.  LISTREDO
     EXIT

6c.  SHOWVAR A

     The value of A (and of all variables except HPCIDEPTH) remains
     constant in all levels of the CI.

7a.  LISTREDO

7b.  ci

7c.  LISTREDO
     The history stack reflects only those commands that you have entered
     at a particular level of the CI. As you enter a higher level, the
     previous level's history stack is preserved, though you cannot list
     it until you return to that CI level.  At each level, LISTREDO
     displays only the commands entered at that level. 

8.   EXIT Return EXIT Return EXIT Return 

     or

     Break ABORT Return 

9. 

          editor
          ...
          /A
             1     (User writes program code) 
          ...
          /K PROG
          ...
          /:RUN CI.PUB.SYS
          ...
          :        (Nested CI level--user compiles/runs PROG) 
          ...
          :EXIT    (User returns to root CI) 
          /

MPE/iX 5.0 Documentation