Need To Clean Your IIS Log Files (Older Than x Number of Days) For All Sites? Here’s a Script

You may have the classic issue of needing logs cleared but you do not have time to log onto each server and delete files for space. Here’s a script that will do it for all IIS sites and will let you select how many days back you wish to keep. For this example this script is wrote for 30 days and would be run on a task scheduler monthly.

  • Open notepad and create a file called IISLogMonthlyCleanup.vbs
  • Put in the following snippet and adjust your settings to apply to what you need:
sLogFolder = "c:\inetpub\logs\LogFiles"
iMaxAge = 30 ' # of days
Set objFSO = CreateObject("Scripting.FileSystemObject")
set colFolder = objFSO.GetFolder(sLogFolder)
For Each colSubfolder in colFolder.SubFolders
 Set objFolder = objFSO.GetFolder(colSubfolder.Path)
 Set colFiles = objFolder.Files
 For Each objFile in colFiles
 iFileAge = now-objFile.DateCreated
 if iFileAge > (iMaxAge+1) then
 objFSO.deletefile objFile, True
 end if

Save and run. *Poof* the old logs are gone. Set it up in a task scheduler and move on to more important things.

TIP: You can run the scheduled task as SYSTEM since it has privileges to run whether logged on or not. It also has access to the file system.

Hope this helps.