TACL Reference Manual

UTILS:TACL Commands and Functions

HP NonStop TACL Reference Manual—429513-018

8-268

Question Mark (?) Command

Use the question mark (?) command to display a previous command line.

num

is an absolute history number.

- num

is a number relative to the current history number.

text

is a text string.

Considerations

•

If you enter a question mark (?) without an argument, TACL displays the previous

command (? is the same as ? - 1).

•

If TACL cannot find a command that matches your specification-whether by

absolute history number, relative history number, or command text-it issues an

error message.

•

You must enter the ? command from the IN file (normally your home terminal); you

cannot include it in a macro, for example. Similarly, you cannot change ? to

another name with an ALIAS, nor can you program a function key to execute the ?

command.

•

The ? command does not increment the history number in the TACL prompt.

Examples

1. In this example, the user first uses the ? command to determine what command

was issued at history number 5. The user then enters the ! command to reexecute

that command (OUTVAR edstat).

10> ?5

10> OUTVAR edstat

10> !5

STATUS *,PROG $SYSTEM.SYSTEM.TEDIT

[num]

[- num]

[text]