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

要遍历每个文件,可以使用for循环:

(目录\路径\*)do (something_here)

在我的例子中,我还需要文件内容、名称等。

这导致了一些问题,我认为我的用例可能会有所帮助。下面是一个循环,它从目录中的每个“。txt”文件中读取信息,并允许你对它做一些事情(例如setx)。

@ECHO OFF
setlocal enabledelayedexpansion
for %%f in (directory\path\*.txt) do (
  set /p val=<%%f
  echo "fullname: %%f"
  echo "name: %%~nf"
  echo "contents: !val!"
)

*限制:val<=%%f将只获得文件的第一行。

其他回答

for %1 in (*.*) do echo %1

在cmd中尝试“HELP FOR”以获得完整的指南

这是XP命令的指南。http://www.ss64.com/nt/

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。

我很难让jop的答案与绝对路径一起工作,直到我发现这个参考:https://ss64.com/nt/for_r.html

下面的示例循环遍历一个由绝对路径给出的目录中的所有文件。

For /R C:\absoulte\path\ %%G IN (*.*) do (
  Echo %%G
)

这将递归地列出当前目录及其子目录中的所有文件(仅是文件):

for /r %i in (*) do echo %i

此外,如果在批处理文件中运行该命令,则需要将%符号加倍。

for /r %%i in (*) do echo %%i

(感谢@agnul)

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