我怎样才能在批处理文件比较两个文件?
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21-08-2019 - |
题
我如何比较在批处理文件中的两个文件,并基于它们是否匹配的动作?我已经试过类似:
if file1.txt NEQ file2.txt goto label
,但它比较实际字符串“FILE1.TXT”而不是该文件。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。有人知道怎么做这个吗?很抱歉,但我很少使用批处理文件,并在他们缺乏经验。
预先感谢。
解决方案
我相信你可以使用“FC”命令,然后检查ERRORLEVEL。下面是一些代码:
@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
(来自 http://www.computing.net拉/answers/dos/batch-file-command/15753.html )
其他提示
这似乎是COMP程序实际上是相当容易使用。请参见雅虎回答这个问题。
请注意运行comp /?
将打印程序的帮助文本(如不指定任何原生Windows命令行程序/?
参数)。这个输出在上面链接的问题的答案看到相同的文字。
从雅虎回答内容:
C:\>comp /?
Compares the contents of two files or sets of files.
COMP [data1] [data2] [/D] [/A] [/L] [/N=number] [/C] [/OFF[LINE]]
data1 Specifies location and name(s) of first file(s) to compare.
data2 Specifies location and name(s) of second files to compare.
/D Displays differences in decimal format.
/A Displays differences in ASCII characters.
/L Displays line numbers for differences.
/N=number Compares only the first specified number of lines in each file.
/C Disregards case of ASCII letters when comparing files.
/OFF[LINE] Do not skip files with offline attribute set.
To compare sets of files, use wildcards in data1 and data2 parameters.
我用下面的例子中基于文件的差异来构建报告:
set %Batch_Work_Space_Dir%=folder for your batch file and temp resource files
set file_1=name of file
set file_2=name of file
fc %file_1% %file_1%t > %Batch_Work_Space_Dir%\Are_They_Different.txt
powershell -command "(Get-Content %Batch_Work_Space_Dir%\Are_They_Different.txt) | select -skip 1 | Set-Content %Batch_Work_Space_Dir%\Are_They_Different.txt"
set /p Diff_Found=<%Batch_Work_Space_Dir%\Are_They_Different.txt
if %Diff_Found:~0,17%" == "FC: no difference" (
execute commands
)
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