如果你想在屏幕上真正看到一些东西，下面的步骤会有所帮助——即使批处理文件被重定向到一个文件。如果重定向到一个文件，也可以使用设备CON

例子:

ECHO first line on normal stdout. maybe redirected
ECHO second line on normal stdout again. maybe redirected
ECHO third line is to ask the user. not redirected  >CON
ECHO fourth line on normal stdout again. maybe redirected

另请参阅良好的重定向说明:http://www.p-dd.com/chapter7-page14.html

Mtee是一个小型实用程序，它非常适合这个目的。它是免费的，源代码是开放的，而且很好用。

你可以在http://www.commandline.co.uk上找到它。

在批处理文件中用于显示输出并同时创建日志文件，语法如下所示:

    someprocess | mtee /+ mylogfile.txt

其中/+表示附加输出。

当然，这假设您已经将mtee复制到PATH中的文件夹中。

I know this is a very old topic, but in previous answers there is not a full implementation of a real time Tee written in Batch. My solution below is a Batch-JScript hybrid script that use the JScript section just to get the output from the piped command, but the processing of the data is done in the Batch section. This approach have the advantage that any Batch programmer may modify this program to fit specific needs. This program also correctly process the output of CLS command produced by other Batch files, that is, it clear the screen when CLS command output is detected.

@if (@CodeSection == @Batch) @then


@echo off
setlocal EnableDelayedExpansion

rem APATee.bat: Asynchronous (real time) Tee program, Batch-JScript hybrid version
rem Antonio Perez Ayala

rem The advantage of this program is that the data management is written in Batch code,
rem so any Batch programmer may modify it to fit their own needs.
rem As an example of this feature, CLS command is correctly managed

if "%~1" equ "" (
   echo Duplicate the Stdout output of a command in the screen and a disk file
   echo/
   echo anyCommand ^| APATee teeFile.txt [/A]
   echo/
   echo If /A switch is given, anyCommand output is *appended* to teeFile.txt
   goto :EOF
)

if "%2" equ ":TeeProcess" goto TeeProcess

rem Get the output of CLS command
for /F %%a in ('cls') do set "cls=%%a"

rem If /A switch is not provided, delete the file that receives Tee output
if /I "%~2" neq "/A" if exist %1 del %1

rem Create the semaphore-signal file and start the asynchronous Tee process
echo X > Flag.out
if exist Flag.in del Flag.in
Cscript //nologo //E:JScript "%~F0" | "%~F0" %1 :TeeProcess
del Flag.out
goto :EOF

:TeeProcess
   rem Wait for "Data Available" signal
   if not exist Flag.in goto TeeProcess
   rem Read the line sent by JScript section
   set line=
   set /P line=
   rem Set "Data Read" acknowledgement
   ren Flag.in Flag.out
   rem Check for the standard "End Of piped File" mark
   if "!line!" equ ":_EOF_:" exit /B
   rem Correctly manage CLS command
   if "!line:~0,1!" equ "!cls!" (
      cls
      set "line=!line:~1!"
   )
   rem Duplicate the line in Stdout and the Tee output file
   echo(!line!
   echo(!line!>> %1
goto TeeProcess


@end


// JScript section

var fso = new ActiveXObject("Scripting.FileSystemObject");
// Process all lines of Stdin
while ( ! WScript.Stdin.AtEndOfStream ) {
   // Read the next line from Stdin
   var line = WScript.Stdin.ReadLine();
   // Wait for "Data Read" acknowledgement
   while ( ! fso.FileExists("Flag.out") ) {
      WScript.Sleep(10);
   }
   // Send the line to Batch section
   WScript.Stdout.WriteLine(line);
   // Set "Data Available" signal
   fso.MoveFile("Flag.out", "Flag.in");
}
// Wait for last "Data Read" acknowledgement
while ( ! fso.FileExists("Flag.out") ) {
      WScript.Sleep(10);
}
// Send the standard "End Of piped File" mark
WScript.Stdout.WriteLine(":_EOF_:");
fso.MoveFile("Flag.out", "Flag.in");

我想对撒克逊德鲁斯的精彩回答进行一点扩展。

如上所述，您可以重定向当前目录中的可执行文件的输出，如下所示:

powershell ".\something.exe | tee test.txt"

但是，这只将stdout记录到test.txt。它也不记录stderr。

最明显的解决方法是使用如下内容:

powershell ".\something.exe 2>&1 | tee test.txt"

然而，这并不适用于所有的前任。一些东西。前任们会把2>&1解释为争吵而失败。正确的解决方案是在something.exe及其开关和参数周围只使用撇号，如下所示:

powershell ".\something.exe --switch1 --switch2 … arg1 arg2 …" 2^>^&1 ^| tee test.txt

但是请注意，在这种情况下，您必须转义特殊的cmd-shell字符“>&|”，每个字符都有一个“^”，这样它们只能由powershell解释。

我使用带有“for”语句的批处理子例程来一次一行地获取命令输出，并将该行写入文件并输出到控制台。

@echo off
set logfile=test.log

call :ExecuteAndTee dir C:\Program Files

Exit /B 0

:ExecuteAndTee
setlocal enabledelayedexpansion
echo Executing '%*'
  for /f "delims=" %%a in ('%* 2^>^&1') do (echo.%%a & echo.%%a>>%logfile%)
endlocal
Exit /B 0

这是可行的，尽管它有点丑陋:

dir >_ && type _ && type _ > a.txt

它比其他一些解决方案更灵活一些，因为它是一条一条地工作的，所以您也可以使用它来追加。我在批处理文件中经常使用这种方法来记录和显示消息:

ECHO Print line to screen and log to file.  >_ && type _ && type _ >> logfile.txt

是的，您可以只重复ECHO语句(一次用于屏幕，第二次重定向到日志文件)，但这看起来同样糟糕，并且存在一些维护问题。至少这样您就不必在两个地方对消息进行更改。

注意_只是一个简短的文件名，所以你需要确保在批处理文件的末尾删除它(如果你使用的是批处理文件)。