[batch file] renaming files need help

[Benuz]

First of all, I was looking for the right forum to post this, but I do not know where I should go. What is the type of this language called for writing batch files?

Anyway, I am trying to make a batch file that can rename all files in the folder with a new name which consist of the last modified date, time and 6 digits of randomly generated number, with the format [YY_MM_DD_HH_MM_SS_######.jpg]. I tried to google myself but I do not know what to do with the results. Here is what I have at the moment:

The following batch command renames my files with a bunch of random numbers. Used most of the code from here

@ECHO OFF
SETLOCAL EnableExtensions EnableDelayedExpansion

FOR /F "tokens=*" %%A IN ('DIR /A:-D /B') DO (
	IF NOT %%A==%~nx0 (
		SET Use=%%~xA
		SET NewName=!random!_!random!_!random!_!random!_!random!!Use!
		RENAME "%%A" "!NewName!"
	)
)

Then I found the following from here, which can identify the last modified date for me. Should be relevant to what I need.

FOR %%? IN (file_to_be_queried) DO (
    ECHO File Name Only       : %%~n?
    ECHO File Extension       : %%~x?
    ECHO Name in 8.3 notation : %%~sn?
    ECHO File Attributes      : %%~a?
    ECHO Located on Drive     : %%~d?
    ECHO File Size            : %%~z?
    ECHO Last-Modified Date   : %%~t?
    ECHO Parent Folder        : %%~dp?
    ECHO Fully Qualified Path : %%~f?
    ECHO FQP in 8.3 notation  : %%~sf?
    ECHO Location in the PATH : %%~dp$PATH:?
)

Lastly, I found this from here. It has the option for me to define 8 digits, so it seems useful.

set number=
for /L %%j in (1 1 8) do set number=!random:~0,1!!number!

So how to combine them and create what I am looking for? Please help.





UPDATE:

I just found this, which could be extremely useful
Rename Files to Match Date/Time Stamp | PCMag.com

In their example, they compiled the following

FOR %%V IN (%1) DO FOR /F "tokens=1-5 delims=/: " %%J IN ("%%~tV") DO IF EXIST %%L%%J%%K_%%M%%N%%~xV (ECHO Cannot rename %%V) ELSE (Rename "%%V" %%L%%J%%K_%%M%%N%%~xV)

with some rearrangement (if i got it right)

FOR %%V IN (%1) DO (
	FOR /F "tokens=1-5 delims=/: " %%J IN ("%%~tV") DO (
		IF EXIST %%L%%J%%K_%%M%%N%%~xV (
			ECHO Cannot rename %%V
		) ELSE (
			Rename "%%V" %%L%%J%%K_%%M%%N%%~xV
		)
	)
)

The code in the example above did no work right out of the box, so I used some of it, combined with what I had earlier and made the following. This one do not generate random numbers.

@ECHO OFF

FOR  /F "tokens=*" %%A IN ('DIR /A:-D /B') DO (
	IF NOT %%A==%~nx0 (
		FOR /F "tokens=1-5 delims=/: " %%J IN ("%%~tV") DO (
			RENAME "%%A" %%L%%J%%K_%%M%%N%%~xV
		)
	)
)
PAUSE

but it did not work, and in return,

A duplicate file name exists, or the file
cannot be found.
A duplicate file name exists, or the file
cannot be found.
Press any key to continue . . .