Extract number from string in batch file

Question

From a batch file I want to extract the number 653456 from the following string:

C:\\Users\\testing\\AppData\\Local\\Test\\abc123\\643456\\VSALB         


        

Answer 1

Assuming the number is always the parent folder (the folder before the end):

@echo off
set "str=C:\Users\testing\AppData\Local\Test\abc123\643456\VSALBT81_COM"
for %%F in ("%str%\..") do set "number=%%~nxF"