批处理查找指定log文件里面的指定内容后面的8个数字建一个文件夹

@echo off
for /f "tokens=3 delims=: " %%a in ('type 123.log^|findstr /i /c:"System S/N:"') do (
if not exist %%a\ md %%a
explorer %%a
)

下面是8位的

@echo off & setlocal EnableDelayedExpansion
for /f "tokens=3 delims=: " %%a in ('type 123.log^|findstr /i /c:"System S/N:"') do (
set wkdxz=%%a
md !wkdxz:~-8,8! >nul 2>nul
explorer !wkdxz:~-8,8!
)

@echo off
setlocal enabledelayedexpansion
for /f "tokens=3 delims= " %%i in ('type 123.log^|find "System S/N"') do (
set s=%%i
set s=!s:~-8!
if not exist !s! md !s!
)