如何在Windows命令提示符中运行命令行应用程序,同时显示输出并将输出重定向到文件?
例如,如果我要运行命令dir > test.txt,这将把输出重定向到一个名为test.txt的文件,而不显示结果。
我如何写一个命令来显示输出并将输出重定向到Windows命令提示符中的文件,类似于Unix上的tee命令?
如何在Windows命令提示符中运行命令行应用程序,同时显示输出并将输出重定向到文件?
例如,如果我要运行命令dir > test.txt,这将把输出重定向到一个名为test.txt的文件,而不显示结果。
我如何写一个命令来显示输出并将输出重定向到Windows命令提示符中的文件,类似于Unix上的tee命令?
当前回答
@echo on
set startDate=%date%
set startTime=%time%
set /a sth=%startTime:~0,2%
set /a stm=1%startTime:~3,2% - 100
set /a sts=1%startTime:~6,2% - 100
fullprocess.bat > C:\LOGS\%startDate%_%sth%.%stm%.%sts%.LOG | fullprocess.bat
这将创建一个包含当前日期时间的日志文件,您可以在此过程中设置控制台行
其他回答
I agree with Brian Rasmussen, the unxutils port is the easiest way to do this. In the Batch Files section of his Scripting Pages Rob van der Woude provides a wealth of information on the use MS-DOS and CMD commands. I thought he might have a native solution to your problem and after digging around there I found TEE.BAT, which appears to be just that, an MS-DOS batch language implementation of tee. It is a pretty complex-looking batch file and my inclination would still be to use the unxutils port.
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");
不幸的是,没有这样的东西。
Windows控制台应用程序只有一个输出句柄。(嗯,有两个STDOUT, STDERR,但在这里不重要)>重定向输出通常写入控制台句柄到文件句柄。
如果你想要有某种多路复用,你必须使用一个外部应用程序,你可以将输出转移到它。然后,该应用程序可以再次写入文件和控制台。
如果你的windows环境路径中有cygwin,你可以使用:
dir > a.txt | tail -f a.txt
如果你在CLI中,为什么不用FOR循环来“DO”你想做的事情:
for /F "delims=" %a in ('dir') do @echo %a && echo %a >> output.txt
Great resource on Windows CMD for loops: https://ss64.com/nt/for_cmd.html The key here is setting the delimeters (delims), that would break up each line of output, to nothing. This way it won't break on the default of white-space. The %a is an arbitrary letter, but it is used in the "do" section to, well... do something with the characters that were parsed at each line. In this case we can use the ampersands (&&) to execute the 2nd echo command to create-or-append (>>) to a file of our choosing. Safer to keep this order of DO commands in case there's an issue writing the file, we'll at least get the echo to the console first. The at sign (@) in front of the first echo suppresses the console from showing the echo-command itself, and instead just displays the result of the command which is to display the characters in %a. Otherwise you'd see:
echo驱动器[x]中的卷为Windows
UPDATE: /F跳过空行,唯一的修复是预过滤输出,向每一行添加一个字符(可能通过命令find使用行号)。在CLI中解决这个问题既不快速也不漂亮。此外,我没有包括STDERR,所以这里捕获错误:
for /F "delims=" %a in ('dir 2^>^&1') do @echo %a & echo %a >> output.txt
重定向错误消息
插入符号(^)用于转义后面的符号,因为命令是一个正在被解释的字符串,而不是直接在命令行中输入它。