Batch script to delete all folders except of "Starts with"

Question

I have a folder with several subfolders. Structure is like:

• C:\foo
• C:\foo\web.foo
• C:\foo\web.bar
• C:\foo\win.foo
• C:\foo\win.bar
• C:\foo\mobile.foo
• C:\foo\mobile.bar

I sometimes wish to delete the folders with its containing files with following batch script:

rmdir C:\foo /s /q

Here it didn't matter that the whole folder C:\foo was deleted completely.

But now I only want to delete only the subfolders of C:\foo with its containing files, which DO NOT start with "web.".

Do you have any good solution for this?

Answer 1

The following should do the trick, note it's a batch file using the current directory:

@echo off
for /F "delims=" %%D in ('dir /B /AD ^| findstr /V "^web."') do (
   echo rmdir %%D /s /q
)

If it's okay remove the echo in front of rmdir.

The dir command just list directory names because of /AD and use a simple name output because of /B. To search on the beginning use findstr with /V. For negation use ^. Further the pipe symbol needs to be escaped ^|.

---

If you want a dynamic batch script that uses arguments you can use the following, call it via batchname.bat "C:\foo" web. (if it's okay remove the echo in front of rmdir.):

@echo off

set INVARGS=0
if [%1] == [] set "INVARGS=1"
if [%2] == [] set "INVARGS=1"
if %INVARGS% == 1 (
   echo echo %0 ^<directory^> ^<directory_prefix^>
   goto eof
)

set "folder=%1%"
set "prefix=%2%"

pushd "%folder%"
echo List of folders that should be deleted:
for /F "delims=" %%D in ('dir /B /AD ^| findstr /v "^%prefix%"') do (
   echo "%cd%\%%D"
)
popd

:choice
echo.
set /P "c=Are you sure you want to continue [Y/N]?"
if /I "%c%" EQU "Y" goto yes
if /I "%c%" EQU "N" goto eof
goto :choice

:yes
echo.
pushd "%folder%"
for /F "delims=" %%D in ('dir /B /AD ^| findstr /v "^%prefix%"') do (
   echo rmdir %%D /s /q
)
popd

:eof

Answer 2

This will remove all files begin with web.

@echo off
setlocal EnableDelayedExpansion

for /f %%F in ('dir /b /s') do (
    set "name=%%~nF"
    if /i not "!name:~0,4!" == "web." (
        rm !name!
    )
)