如何使用for循环遍历目录中的每个文件?

我如何判断某个条目是一个目录还是一个文件?


当前回答

试试这个测试文件是否是目录:

FOR /F "delims=" %I IN ('DIR /B /AD "filename" 2^>^&1 ^>NUL') DO IF "%I" == "File Not Found" ECHO Not a directory

这只会告诉你一个文件是否不是一个目录,如果文件不存在,这也会是真的,所以如果需要,一定要先检查它。插入符号(^)用于转义重定向符号,文件列表输出被重定向到NUL以防止它被显示,而DIR列表的错误输出被重定向到输出,因此您可以测试DIR的消息“file Not Found”。

其他回答

下面的代码在当前目录中创建一个名为“AllFilesInCurrentDirectorylist.txt”的文件,其中包含当前目录中所有文件(仅为文件)的列表。看看吧

dir /b /a-d > AllFilesInCurrentDirectorylist.txt

从命令行运行FOR和从批处理文件运行FOR之间有细微的区别。在批处理文件中,您需要在每个变量引用前放置两个%字符。

从命令行:

FOR %i IN (*) DO ECHO %i

从批处理文件:

FOR %%i IN (*) DO ECHO %%i

它也可以使用forfiles命令:

forfiles /s 

还要检查它是否是一个目录

forfiles /p c:\ /s /m *.* /c "cmd /c if @isdir==true echo @file is a directory"

我使用xcopy命令和/L选项来获取文件名。所以如果你想获取一个目录或子目录下的所有文件,你可以这样做:

for /f "delims=" %%a IN ('xcopy "D:\*.pdf" c:\ /l') do echo %%a

我只是使用c:\作为目标,因为它一直存在于windows系统中,而且它不会复制,所以没关系。如果你也想要子目录,只需在最后使用/s选项。如果出于其他原因需要xcopy的其他开关,也可以使用它们。

下面是代码中的注释。

我只是在温习婊子技能,所以请原谅任何明显的错误。

我试着写一个all in one解决方案,尽我所能,在用户需要的地方做了一些修改。

一些重要注意事项:如果只希望处理根目录、文件和文件夹,只需将变量递归更改为FALSE。否则,它会检查所有文件夹和文件。

最欢迎C&C…

@echo off
title %~nx0
chcp 65001 >NUL
set "dir=c:\users\%username%\desktop"
::
:: Recursive Loop routine - First Written by Ste on - 2020.01.24 - Rev 1
::
setlocal EnableDelayedExpansion
rem THIS IS A RECURSIVE SOLUTION [ALBEIT IF YOU CHANGE THE RECURSIVE TO FALSE, NO]
rem By removing the /s switch from the first loop if you want to loop through
rem the base folder only.
set recursive=TRUE
if %recursive% equ TRUE ( set recursive=/s ) else ( set recursive= )
endlocal & set recursive=%recursive%
cd /d %dir%
echo Directory %cd%
for %%F in ("*") do (echo    → %%F)                                 %= Loop through the current directory. =%
for /f "delims==" %%D in ('dir "%dir%" /ad /b %recursive%') do (    %= Loop through the sub-directories only if the recursive variable is TRUE. =%
  echo Directory %%D
  echo %recursive% | find "/s" >NUL 2>NUL && (
    pushd %%D
    cd /d %%D
    for /f "delims==" %%F in ('dir "*" /b') do (                      %= Then loop through each pushd' folder and work on the files and folders =%
      echo %%~aF | find /v "d" >NUL 2>NUL && (                        %= This will weed out the directories by checking their attributes for the lack of 'd' with the /v switch therefore you can now work on the files only. =%
      rem You can do stuff to your files here.
      rem Below are some examples of the info you can get by expanding the %%F variable.
      rem Uncomment one at a time to see the results.
      echo    → %%~F           &rem expands %%F removing any surrounding quotes (")
      rem echo    → %%~dF          &rem expands %%F to a drive letter only
      rem echo    → %%~fF          &rem expands %%F to a fully qualified path name
      rem echo    → %%~pF          &rem expands %%A to a path only
      rem echo    → %%~nF          &rem expands %%F to a file name only
      rem echo    → %%~xF          &rem expands %%F to a file extension only
      rem echo    → %%~sF          &rem expanded path contains short names only
      rem echo    → %%~aF          &rem expands %%F to file attributes of file
      rem echo    → %%~tF          &rem expands %%F to date/time of file
      rem echo    → %%~zF          &rem expands %%F to size of file
      rem echo    → %%~dpF         &rem expands %%F to a drive letter and path only
      rem echo    → %%~nxF         &rem expands %%F to a file name and extension only
      rem echo    → %%~fsF         &rem expands %%F to a full path name with short names only
      rem echo    → %%~dp$dir:F    &rem searches the directories listed in the 'dir' environment variable and expands %%F to the fully qualified name of the first one found. If the environment variable name is not defined or the file is not found by the search, then this modifier expands to the empty string
      rem echo    → %%~ftzaF       &rem expands %%F to a DIR like output line
      )
      )
    popd
    )
  )
echo/ & pause & cls