Windows advanced file matching
findstr
can do regexes under Windows just fine. I'd try:
dir /b | findstr /i "^[0-9][0-9]*\.pdf$"
The "dir /b"
gives you the filenames only, one per line. The regex matches one or more digits followed by a period followed by your desired extension. For any extension, you could do:
dir /b | findstr "^[0-9][0-9]*\.[^\.]*$"
Obviously, if there are other cases more complicated, you can adjust the regex to suit. It doesn't have the full power of UNIX regexes but it's reasonably good.
The following command file shows how you can process each pdf file in the current directory that meets your "all-numeric" requirement.
@echo offsetlocal enableextensions enabledelayedexpansionfor /f "usebackq" %%i in (`dir /b ^| findstr /i "^[0-9][0-9]*\.PDF$"`) do ( set fspec=%%i echo.Processing !fspec!)endlocal
The site http://www.robvanderwoude.com/batchfiles.php is a very good resource for CMD file magic (and many more things).
windows have provided you with an improved programming tool since win98. Its called vbscript.
Set objFS = CreateObject("Scripting.FileSystemObject")strFolder = "c:\test"Set objFolder = objFS.GetFolder(strFolder)For Each strFile In objFolder.Files strFileName = strFile.Name strExtension = objFS.GetExtensionName(strFile) strBase = objFS.GetBaseName(strFile) If IsNumeric(strBase) Then 'check if numeric WScript.Echo strBase 'continue to process file here....... End If Next
for more information on vbscript, read the manual