在 Windows 批处理中读取文件名
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Read File Name in Windows Batch Programming
提问by Mareena
I want to read the name of a file in windows batch programming. I am trying by using different methods but failed please help.
我想在 Windows 批处理编程中读取文件的名称。我正在尝试使用不同的方法但失败了请帮忙。
Scenario has been given below.
下面给出了场景。
I have different files in a folder but the length for filename is same for all files. E.g.
我在一个文件夹中有不同的文件，但所有文件的文件名长度都相同。例如
1000342578_30062011.PDF
1000342329_30062011.PDF
And I just want to save the part after _and before .PDF(e.g. 30062011) part in a variable.
我只想在变量中保存（例如）部分之后_和之前的部分。.PDF30062011
Below are just tries but I am not able to get through.
以下只是尝试，但我无法通过。
@echo off
echo.Date : %date%
echo.Year : %date:~10,4%
dir /s /b C:\Users\zeeshando\Desktop\*.txt
for %%x in (c:\temp\*.xls) do echo %%x
lfnfor off
for %%x in (*.*) do echo %%x > filelist.txt
PAUSE
for %i in (C:\Users\zeeshando\Desktop) do
echo %~ni
PAUSE
UPDATE
更新
My current code, based on @Alex K.'s answer:
我当前的代码，基于@Alex K. 的回答：
@setlocal enabledelayedexpansion
for %%x in (C:\Hi\*.*) do (
set fn=%%x
set fn=!fn:~22,8!
echo !fn!
call:handler
)
goto:eof
:handler
echo !fn!
copy C:\Hi\*.* E:\!fn!
goto:eof
PAUSE
But it is not copying the files. Please check the above code.
但它不是复制文件。请检查上面的代码。
回答by Dave
You could do this in your for loop using _ and . as delimiters, like this:
您可以在 for 循环中使用 _ 和 . 作为分隔符，像这样：
FOR /F "tokens=2 delims=_." %%i IN ('DIR /b C:\Users\zeeshando\Desktop\*_*.*') DO ECHO %%i
回答by Andriy M
@ECHO OFF
SET "destpath=destinationPath"
FOR %%f IN (sourcePath\*.*) DO CALL :process "%%f"
GOTO :EOF
:process
SET srcfile=%1
SET "name=%~n1"
SET "name=%name:*_=%"
COPY %srcfile% "%destpath%\%name%"
The SET "name=%~n1"line extracts from the full path just the name without extension.
该SET "name=%~n1"行仅从完整路径中提取没有扩展名的名称。
The SET "name=%name:*_=%"line deletes the _character and everything before it in the value of nameand stores the result back to name.
该SET "name=%name:*_=%"行删除了_值中的字符及其之前的所有内容，name并将结果存储回name.
Ultimately, before executing the COPYcommand, nameonly contains that part of the original filename which is between _and the extension.
最终，在执行COPY命令之前，name只包含原始文件名中_扩展名和扩展名之间的那部分。
回答by Alex K.
As they are of a fixed length you can use :~startpos,lensyntax;
由于它们的长度是固定的，因此您可以使用:~startpos,len语法；
set fn=1000342578_30062011.PDF
set fn=%fn:~11,8%
echo %fn%
>30062011
In a for loop;
在 for 循环中；
setlocal enabledelayedexpansion
for %%x in (*.*) do (
set fn=%%x
set fn=!fn:~11,8!
call:handler
)
goto:eof
:handler
echo !fn!
goto:eof
