如何在所有子目录中搜索并删除Windows命令提示符下与文件类型不匹配的所有文件？

Question

For example,

Documents 
- Personal
    - abc.doc
    - 123.pdf
- Stuff
    - def.doc
    - 456.pdf

I want to delete all files that are not .doc under Documents directory. How can I do this with a windows batch file or in the command prompt?

Answer 1

@echo off
    setlocal enableextensions disabledelayedexpansion

    set "folder=x:\somewhere\documents"

    for /f "delims=" %%a in ('
        dir /b /s /a-d "%folder%" ^| findstr /i /v /e /l /c:".doc"
    ') do echo del "%%a"

This code executes a dir command (only file paths/names /b , recursive /s , without folders in the list /ad ) to retrieve the list of files under the documents folder. This list is filtered with findstr to only get, ignoring case /i , the lines that do not contain /v at the end of the line /e the literal /l .doc /c:".doc"

This command is executed from a for command that will process each line of the output. For each line, the replaceable parameter %%a will hold the path/name of the file, so in the do clause we remove the indicated file.

del operations are only echoed to console. If the output is correct, remove the echo command

Answer 2

Test this on a sample set of files.

@echo off
set "folder=c:\documents"
attrib +h "%folder%\*.doc" /s
del "%folder%\*.*?" /s
attrib -h "%folder%\*.doc" /s

Answer 3

使用forfiles命令：

forfiles /s /c "cmd /c if @isdir NEQ TRUE if [@ext] NEQ [doc] del @path"