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Level 13

Log Parser Powershell - todays date in the file name

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I'm trying to use the log parser PowerShell template to look in a text file for a string.

I can get it to work on a file like the below.


but I cant work out how to add todays date into the script argument? As the system that creates the log file adds the date so every day its a new log file.

todays date is 17/10/2016


feel like it should be something like

c:\logfile$get-date format- yyyy-mm-dd.log, error502

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3 Replies
Level 12

Re: Log Parser Powershell - todays date in the file name

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I'm assuming you mean this one?  Based on the notes, the file name cannot have a space in it, which means your command will fail immediately.  That said, you could try this to see if it works:

"C:\logfile$(Get-Date -Format 'yyyy-mm-dd').log",error,match,2

The types of quotes might be important.  I'd also verify your syntax, I'm not sure if there is a copy/paste issue, or I'm looking at a different template, but the arguments you provided don't match up with the ones required by the script.

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Level 13

Re: Log Parser Powershell - todays date in the file name

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That didn't work, but in my simplifying of the question that might be why it didn't work.

That is the correct template im using. Below is the argument im using, with the wrong servername

     "\\${ip}\AudaNotification\Logs\AudaReceiver $(Get-Date -Format 'yyyy-mm-dd').log",<Error> <Location>AudaReceiver:Worker <AppError>Web service is unavailable - will continue to poll. error code,match,2

but the error im getting is

     Output:      ==============================================

     Message: File "\\********\AudaNotification\Logs\AudaReceiver $(Get-Date -Format 'yyyy-mm-dd').log" not found.

     Errors:      ==============================================

     Test-Path : Illegal characters in path.

     At line:15 char:9

     + if ( !$(Test-Path $logfile_path) )

     +         ~~~~~~~~~~~~~~~~~~~~~~~

         + CategoryInfo          : InvalidArgument: (C:\Windows\syst...yy-mm-dd').log":String) [Test-Path], ArgumentException

         + FullyQualifiedErrorId : ItemExistsArgumentError,Microsoft.PowerShell.Commands.TestPathCommand

but its not getting the date? and adding to the filename

I have to do it remotely as the box its on does not have powershell - 2003 box. But need this to work as moving from a lot simpler system Hostmon that can do this with its eyes closed without powershell!!

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Level 13

Re: Log Parser Powershell - todays date in the file name

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Just to let people know I used a VBScript instead to perform this task

     Script Argument

/file:"\\**********\f$\AudaNotification\Logs\AudaReceiver ${Date}.log" /search:"error"

     Script Body

'/file: [required] This is the UNC location for the file to be searched.
' ${Date} is a wildcard you can put anywhere in the filename to indicate the datestamp(current date) as part of the filename.
' * ${Date} must be used with strDateFormat!!
' Example: /file:"//myserver/myshare$/myfile.txt" or /file:"${IP}/myshare/myfile.txt"
'/search: [required] This is the string to be searched for in the filename.\
'Example: /search:"error" or /search:"failed"
'DateFormat: [only required if used with ${Date} in file] This is the configuration for the format your datestamps are in.
strDateFormat = "yyyy_mm_dd"
' Usage:
' yyyy - 4 digit year
' yy - 2 digit year
' mm - 2 digit month
' m - 1 digit month
' dd - 2 digit day
' d - 1 digit day
' Seperators: "-", ".", "_", "/"
'Example: strDateFormat = "mm-dd-yyyy" or strDateFormat = "yy_m_d"
'FailIf: [optional] Specify to fail the check if the search string is found or not found
strFailIf = "found"
' Usage:
' found
' not found
'Example: strFailIf = "found" or strFailIf = "not found"
strFileName = Wscript.Arguments.Named("file") 'Get file name from argument
If strFileName = "" Then
    Wscript.Echo "Message: You must specify a File Name like this: /file:""blah.txt"""
End If

strSearch = Wscript.Arguments.Named("search") 'Get search string form argument
If strSearch = "" Then
    Wscript.Echo "Message: You must specify a string to search for like this: /search:""ERROR"""
End If

If strFailIf="" Then strFailIf="found" End If
If (strFailIf="found") Then
ElseIf (strFailIf="notfound" or strFailIf="not found") Then
Wscript.Echo "Message: ERROR, set strFailIf"
End If

yyyy = Datepart("yyyy",Date())
yy = Right(yyyy, 2)
m = Datepart("m",Date())
mm = Right("0" & m, 2)
d = Datepart("d",Date())
dd = Right("0" & d, 2)
strDateFormat = "yyyy-mm-dd"

If (InStr(1,strFileName,"${Date}",1) <> 0 AND strDateFormat <> "") Then
strDateFormat = replace(strDateFormat, "-", " & ""-"" & ")
strFileName = Replace(strFileName,"${Date}",eval(strDateFormat),1,-1,1)
Wscript.Echo "Message: Error with ${Date} and strDateFormat. Please review instructions at top of script."
End If

strPattern = strSearch

Const ForReading = 1

Set objFSO = CreateObject("Scripting.FileSystemObject")

If Not objFSO.FolderExists("temp") Then
End If

PrevLogFile =  "temp\" & strSearch & "-" & mm & "-"  & dd-1 & "-"  & yyyy & ".txt"
If objFSO.FileExists(PrevLogFile) Then
set objPrevLogFile = objFSO.GetFile(PrevLogFile)
End If

PreviousFinds = 0
LogFile = "temp\" & strSearch & "-" & mm & "-"  & dd & "-"  & yyyy & ".txt"
If objFSO.FileExists(LogFile) Then
Set objLog = objFSO.OpenTextFile(LogFile,1, True)

If (IsEmpty(objLog) = True ) Then PreviousFinds = 0 End If
PreviousFinds = objLog.ReadAll
End If

If objFSO.FileExists( strFileName ) Then
  Set objFile = objFSO.GetFile(strFileName)
  If( IsEmpty( objFile ) = True ) Then
      WScript.Echo "Message: OBJECT NOT INITIALIZED"
      WScript.Echo "Statistic: 0"
    End If
    WScript.Echo "Message: The file """ & strFileName & """ was not found!<BR>This could indicate that the file does not exist or you do not have the correct credentials for monitoring. <BR>"
    WScript.Echo "Statistic: 0"
End If

Set objRegEx = CreateObject("VBScript.RegExp")
objRegEx.Pattern = strPattern
objRegEx.IgnoreCase = True
Set objReadFile = objFSO.OpenTextFile(strFileName, ForReading)
Do Until objReadFile.AtEndOfStream
    strSearchString = objReadFile.ReadLine
    Set colMatches = objRegEx.Execute(strSearchString) 
    If colMatches.Count > 0 Then
        For Each strMatch in colMatches  
   If int(x) > int(PreviousFinds) Then 
    Wscript.Echo "Statistic: " & PreviousFinds+1
    Wscript.Echo "Message: New search for """ & strSearch & """ was found: " & strSearchString
     Set objLog = objFSO.OpenTextFile(LogFile, 2, True)
   End If
    End If
If int(x) >1 Then
Wscript.Echo "Statistic: " & PreviousFinds
    Wscript.Echo "Message: New search for """ & strSearch & """ was found, but previous searches did find """ & strSearch & """."
End If
Wscript.Echo "Statistic: " & PreviousFinds
Wscript.Echo "Message: Search for """ & strSearch & """ was not found."