[Foreigner]

Просто заменить все ненужное:

Код:

@echo off
setlocal

set "str=https://subd.site.com/some-variably-long-name-2024886/"
set "str=%str:-= %"
set "str=%str:/=%"

for %%i in (%str%) do set "id=%%i"

echo %id%