batch file - bat: Listing empty directories, if/else statements within for statements? -


i'm trying write script lists every file name in specified folder, , notifies user if folder empty. far i've got:

for /r "o:\mail\5-friday" %%d in (*.pdf) (     dir /a /b "%%~fd" 2>nul | findstr "^" >nul && echo %%~nd || echo empty: friday )

but i've no idea put if, else operators.

and there way specify folder based on user input without rewriting every function each folder? instead of:

if /i {%ans%}=={thursday} (goto :thursday) if /i {%ans%}=={friday} (goto :friday) :thursday     <do stuff> :friday     <do same stuff thursday, different directory>

etc, write 1 function variables in place of paths, assign directory variable, , add/remove folders in code necessary?

to address first part of question, "where put if, else operators"... notation of

command | findstr >nul && echo success || echo fail

... shorthand for

command | findstr >nul if errorlevel 1 (     echo fail ) else (     echo success )

the magic happens in conditional execution operators, && , ||. if findstr exits status zero, match found. therefore, execute stuff after &&. otherwise, status non-zero, no match found, execute stuff after ||. see how works?

for second part, here's typical way prompt user provide entry based on finite number of choices.

@echo off setlocal  :begin set /p "day=what day? " %%i in (monday tuesday wednesday thursday friday) (     if /i "%day%" equ "%%i" goto %%i ) goto begin  :monday call :getdirs "o:\mail\1-monday" goto :eof  :tuesday call :getdirs "o:\mail\2-tuesday" goto :eof  :wednesday call :getdirs "o:\mail\3-wednesday" goto :eof  :thursday call :getdirs "o:\mail\4-thursday" goto :eof  :friday call :getdirs "o:\mail\5-friday" goto :eof  :getdirs <path> setlocal enabledelayedexpansion /f "delims=" %%i in ('dir /b /s /ad "%~1"') (     dir /b "%%i" 2>nul | findstr "^" >nul || echo %%i has no files ) goto :eof

or, hacksier, i'll weren't expecting possible. i'll have script open folder selection dialog allow user select directory scan. it's batch / jscript hybrid script.

if wish, can set root of folder browser shellspecialconstants folder changing last argument in next-to-the-last line. using value of 0x11 makes root system's drives. no value or value of 0x00 makes root "desktop". or leave script as-is set root "o:\mail".

@if (@a==@b) @end /*  :: fchooser2.bat :: batch portion  @echo off setlocal  set initialdir="o:\mail"  /f "delims=" %%i in ('cscript /nologo /e:jscript "%~f0" "%initialdir%"') (     call :getdirs "%%i" )  exit /b  :getdirs <path> setlocal enabledelayedexpansion /f "delims=" %%i in ('dir /b /s /ad "%~1"') (     dir /b "%%i" 2>nul | findstr "^" >nul || (          rem put code handle empty directories.         echo %%i has no files      ) ) goto :eof  :: jscript portion */  var shl = new activexobject("shell.application"); var hint = 'double-click folder expand, and\nchoose folder scan empty directories'; var folder = shl.browseforfolder(0, hint, 0, wsh.arguments(0)); wsh.echo(folder ? folder.self.path : '');

edit since apparently browseforfolder accepts absolute directory, there's no benefit using powershell / c#. hybrid batch / powershell / c# script shall henceforth retired revision history.

this fun!


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