我怎样才能在批处理文件比较两个文件？ [英] How can I compare two files in a batch file?

问题描述

我如何比较在批处理文件中两个文件，​​并执行基于他们是否匹配的动作？我已经试过类似：

How can I compare two files in a batch file, and perform an action based on whether or not they match? I've tried something like:

if file1.txt NEQ file2.txt goto label

但比较实际字符串FILE1.TXT，而不是文件。我读过有关COMP命令，但它似乎没有工作，如果我把它放在一个if语句。是否有人知道如何做到这一点？很抱歉，但我很少使用批处理文件，并在他们缺乏经验。

but it compares the actual string "file1.txt" rather than the file. I've read about the COMP command, but it doesn't seem to work if I put it in an if statement. Does anybody know how to do this? Sorry, but I rarely use batch files and have little experience in them.

先谢谢了。

推荐答案

我相信你可以使用FC命令，然后检查ERRORLEVEL。下面是一些code：

I believe you can use the "FC" command and then check the errorlevel. Here's some code:

@echo off
:main
fc c:\filename r:\filemame > nul
if errorlevel 1 goto error

:next
echo insert next CD
pause
goto main

:error
echo failed check

（从<一把拉住href=\"http://www.computing.net/answers/dos/batch-file-command/15753.html\">http://www.computing.net/answers/dos/batch-file-command/15753.html)

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