Clear Windows Terminal + cmd.exe from .bat file

Solution 1:

Just tested this to work in Terminal:

:: Q:\Test\2019\08\29\SO_1476288.cmd
:: Since windows 10 Treshold2 the console understands  
:: [Ansi Escape Codes](https://en.wikipedia.org/wiki/ANSI_escape_code)  
:: These codes require the escape char hex 0x1b or decimal 27 which is  
:: difficult to generate (depends on your editor)  
::  
::     esc [ 2  J  esc [ 3  J
:: hex 1B 5B 32 4A 1B 5B 33 4A
::
:: This Batch uses certutil to decode a hex string to ascii here
@echo off
echo 1B 5B 32 4A 1B 5B 33 4A>Clear.hex
Del Clear.bin
certutil -decodehex Clear.hex Clear.bin >NUL 2>&1
Set /P Clear=<Clear.bin

dir
Timeout /t 3 >Nul
Echo %Clear%

Solution 2:

Per the comments by @LotPings you can do this if you can type an ASCII escape character (code 27) into your batch file.

@cls && echo ␛[2J␛[3J

That is what $([char]27) was doing in my original question. Unfortunately, most web browsers will strip these if I paste them in a code block. The ␛ character seen above is not ASCII 27, but indicates where that character needs to be.

If you can run this JavaScript code, you can copy the result and paste into a .bat file.

alert("@cls && echo "+String.fromCharCode(27,91,50,74,27,91,51,75))