Display of dialog box

Which autocad variable controls the display of dialog box display

when we use below autolisp codes

(note: for most commands which displays dialogs box used at command prompt)

(command "._layer" ......)
(command "._rename" ......)
& so on

Thank you in advance

The variable is CMDECHO, as shown in the screenshot, from my SYSVDLG.

Thank you Dadgad

If i am not wrong, CMDECHO is not the reason for the issue.

Once a faced problem that most of the lisp programs not working, and traced out that the programs

having commands which open dialogs doesn't work. - example : (command "._layer" ....)

After doing "Reset Settings to Default" issue was cleared.

Not able to find the actual system variable.

Sorry about that, I am ill-lisperate, but thought that was the one.

Glad you were able to get it sorted!

Still i am in search of the cause:)

CMDDIA or FILEDIA?

FILEDIA is what you looking for

but it is better to add - next to command

(command "_.[b]-[/b]layer" ......)
(command "_.[b]-[/b]rename" ......)

instead of

(command "._layer" ......)
(command "._rename" ......)

May be this issue due to some bug.

Is there any way to display dialog box while we type following at command prompt.

(command "._layer")
or
(command "._rename")

FILEDIA and CMDDIA doesn't do this

Already i started to practice

(command "_.-layer" ......)

(command "_.-rename" ......)

Thank you Roy and asos