搜索路径上的可执行文件(或其他类似路径的字符串，如果需要):

c:\> for %i in (cmd.exe) do @echo. %~$PATH:i
C:\WINDOWS\system32\cmd.exe

c:\> for %i in (python.exe) do @echo. %~$PATH:i
C:\Python25\python.exe

c:\>

IF命令!没有它，我的批处理文件是垃圾!

@echo off
IF exist %windir%\system32\iexplore.exe goto end

echo Hmm... it seems you do not have Internet Explorer.
echo Great! You seem to understand ;)

:end
echo Hmm... You have Internet Explorer.
echo That is bad :)

具有数值变量的循环的正确格式是

for /l %%i in (startNumber, counter, endNumber) do echo %%i

更多详情> http://www.ss64.com/nt/for.html

通过使用CALL, EXIT /B, SETLOCAL和ENDLOCAL可以实现带有局部变量的子例程。

例子:

@echo off

set x=xxxxx
call :sub 10
echo %x%
exit /b

:sub
setlocal
set /a x=%1 + 1
echo %x%
endlocal
exit /b

这将打印

11
xxxxx

尽管:sub修改了x。

变量的延迟展开(为了更好地度量，还加入了子字符串):

    @echo off
    setlocal enableextensions enabledelayedexpansion
    set full=/u01/users/pax
:loop1
    if not "!full:~-1!" == "/" (
        set full2=!full:~-1!!full2!
        set full=!full:~,-1!
        goto :loop1
    )
    echo !full!
    endlocal

为了从脚本内部解析stdin，你需要使用For和FIND命令:

for /f "tokens=*" %%g in ('find /V ""') do (
     :: do what you want with %%g
     echo %%g
)