@echo off
SETLOCAL ENABLEDELAYEDEXPANSION

REM Prefer backtick usage for command output reading:
REM ENABLEDELAYEDEXPANSION is required for actualized
REM  outer variables within for's scope;
REM within for's scope, access to modified 
REM outer variable is done via !...! syntax.

SET CHP=C:\Windows\System32\chcp.com

FOR /F "usebackq tokens=1,2,3" %%i IN (`%CHP%`) DO (
    IF "%%i" == "Aktive" IF "%%j" == "Codepage:" (
        SET SELCP=%%k
        SET SELCP=!SELCP:~0,-1!
    )
)
echo actual codepage [%SELCP%]

ENDLOCAL

在命令行中执行以下命令时:

for /f %%i in ('application arg0 arg1') do set VAR=%%i

我得到了错误:

%%i was unexpected at this time.

为了解决这个问题，我改为使用一个%符号，就像这样:

for /f %i in ('application arg0 arg1') do set VAR=%i

简介:

在批处理文件中使用%% 在批处理文件之外使用%(在命令行上)

假设应用程序的输出是一个数字返回码，您可以执行以下操作

application arg0 arg1
set VAR=%errorlevel%

作为前面答案的补充，管道可以在for语句中使用，由插入符号转义:

    for /f "tokens=*" %%i in ('tasklist ^| grep "explorer"') do set VAR=%%i

这个答案可能也有帮助:https://stackoverflow.com/a/61666083/2444948

但它实际上是在写一个文件来读取它… 代码不是我写的:

(cmd & echo.) >2 & (set /p =)<2

REM Example :
(echo foo & echo.) >2 & (set /p bar=)<2

我写了脚本，每5秒ping google.com，并记录当前时间的结果。在这里你可以找到变量“commandLineStr”的输出(带索引)

@echo off

:LOOPSTART

echo %DATE:~0% %TIME:~0,8% >> Pingtest.log

SETLOCAL ENABLEDELAYEDEXPANSION
SET scriptCount=1
FOR /F "tokens=* USEBACKQ" %%F IN (`ping google.com -n 1`) DO (
  SET commandLineStr!scriptCount!=%%F
  SET /a scriptCount=!scriptCount!+1
)
@ECHO %commandLineStr1% >> PingTest.log
@ECHO %commandLineStr2% >> PingTest.log
ENDLOCAL

timeout 5 > nul

GOTO LOOPSTART