Windows批处理:如何将cmd输出写入文件? [英] Windows batch: how to write cmd output to a file?

问题描述

我需要将批处理运行时cmd窗口中出现的行打印到文本文件中.例如，我有以下批处理脚本:

I need to print into a text file the lines that appear in the cmd window when the batch is running. For instance, I have the following batch script:

copy D:\aaa.txt D:\bbb.txt

启动批处理文件时，cmd窗口显示以下几行(对不起，我的Windows是法语):

When I launch the batch file, the cmd window displays the following lines (sorry my Windows is in french):

D:\>copy D:\aaa.txt D:\bbb.txt
    1 fichier(s) copié(s)

我想自动将这两行写到文本文件中，以检查更复杂的批处理文件的执行情况并跟踪错误.

I would like to automatically write these 2 lines in a text file in order to check the execution of more complex batch files and to track errors.

推荐答案

将批处理命令的输出重定向到文件log.txt:

Redirect the output of a batch command into a file log.txt:

D:\>copy D:\aaa.txt D:\bbb.txt >log.txt

将输出追加到文件

copy D:\aaa.txt D:\bbb.txt >>log.txt

请注意，您可能想取消确认是否覆盖目标文件.使用/Y选项执行此操作(但要注意风险):

Note that you might want to suppress the confirmation whether or not to overwrite the target file. Use the /Y option to do so (but be aware of the risks):

copy /Y D:\aaa.txt D:\bbb.txt >>log.txt

还请注意，发出的命令行不是输出的一部分.使用echo命令将其写入:

Also note that the issued command line is not part of the output. Write it using the echo command:

echo copy /Y D:\aaa.txt D:\bbb.txt >>log.txt
copy /Y D:\aaa.txt D:\bbb.txt >>log.txt

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