Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I want to write a batch file which is triggered whenever a new file is added to a particular folder.

I can schedule a task using schtasks. But I am looking for a solution based upon interrupt kind of thing rather than polling. Is there any other way to do this?

share|improve this question
What OS are you trying to do this on? –  slm Apr 7 '13 at 10:56
I am working on windows –  patro Apr 7 '13 at 13:36

2 Answers 2

up vote 1 down vote accepted

There is a way to do what you want, it's called iNotify on Linux/Unix, where the OS can run a script based on activity in a directory that it is "watching". Windows and Mac have similar functionality, it's called by different names.

This question on stackoverflow covers all the options for the various OSes.

JNotify is a nice option which is written in Java and can run on all OSes. It requires writing some Java code, not sure if you're looking for that sort of option.

share|improve this answer
this was helpful...thanks! –  patro Apr 7 '13 at 13:36

Batch can't polling, but you can try this VBScript:

Option Explicit

Const Path = "%userprofile%\Documents\Folder"
Const Interval = 1
Const Delay = 60

Dim oWSH, oFSO, oWMI, oEvent, oTarget, colEvents
Dim sPath, sDrive, sFolder, sNewPath

Set oWSH = CreateObject("WScript.Shell")
Set oFSO = CreateObject("Scripting.FileSystemObject")
oWSH.CurrentDirectory = oFSO.GetParentFolderName(WScript.ScriptFullName)
sPath = oWSH.ExpandEnvironmentStrings(Path)
sPath = oFSO.GetAbsolutePathName(sPath)
If Not oFSO.FolderExists(sPath) Then oFSO.CreateFolder(sPath) 
sDrive = oFSO.GetDriveName(sPath)
sFolder = Replace(Mid(sPath, 3) & "\", "\", "\\", 1, -1, vbTextCompare)

Set oWMI = GetObject("winmgmts:{impersonationLevel=impersonate}!\\.\root\cimv2")
Set colEvents = oWMI.ExecNotificationQuery( _
  "SELECT * FROM __InstanceCreationEvent" _
  & " WITHIN " & CStr(Interval) _
  & " WHERE Targetinstance ISA 'CIM_DataFile'" _
  & " AND TargetInstance.Drive='" & sDrive & "'"_
  & " AND TargetInstance.Path='" & sFolder & "'") 

  Set oEvent = colEvents.NextEvent()
  sNewPath = Year(Now) & "_" & Right("0" & Month(Now), 2) & "_" & Right("0" & Day(Now), 2)
  sNewPath = oFSO.BuildPath(sPath, sNewPath)
  If Not oFSO.FolderExists(sNewPath) Then oFSO.CreateFolder(sNewPath)
  Set oTarget = oEvent.TargetInstance
  WScript.Sleep Delay * 1000
  On Error Resume Next
  oFSO.MoveFile oTarget.Name, oFSO.BuildPath(sNewPath, oFSO.GetFileName(oTarget.Name))
  On Error Goto 0
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.