How can a user know the last 'true command' executed

[Budi]

How can one know the last 'true command' executed in any way, most commonly the command that uses variable.
For instance an alias in an alias file :

a =dir /s /a:sh %1 & copy /a:sh %1 D:\SYSTEMHIDDEN​

And he just type 'a api*kernel*.dll' then enter and wants to know the actual command line had just run.
It's just everyone needs as it's a mandatory and basic debugging way

 

[rconn]

See the help for:

%CMDLINE
%CMDLINE2
%@HISTORY[...]

And then there's the slightly more complicated way of retrieving it from the command history log.