ActiveXperts Network Monitor ships with a powerful set of pre-defined checks. Each individual check has a static number of configuration items. To monitor other items, or to combine monitoring items, you can make use of custom PowerShell checks.
Most of the built-in checks have a PowerShell equivalent, implemented as a PowerShell (.ps1) script file. Out-of-the-box, each PowerShell script monitors the same items as the built-in check. Feel free to modify the script.
To add a new PowerShell-based File Last Line monitoring check, do the following:
- On the 'Monitor menu', open 'New Monitoring Check (Script)' and choose 'New PowerShell Check'. The 'PowerShell Check' dialog box appears;
- In the 'Script File' selection box, select 'File-CheckFileLastLine.ps1';
- In the 'Script Parameters'group box enter the required parameters. You can also load a working sample first by clicking on the 'Click here to load a sample' link.
To customize the above monitoring check, click on the 'Edit button' next to the 'Script File' selection box. Notepad will be launched. You can now make changes to the PowerShell script.
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File-CheckFileLastLine.ps1.ps1 script source code
################################################################################# # ActiveXperts Network Monitor PowerShell script, (c) ActiveXperts Software B.V. # For more information about ActiveXperts Network Monitor, visit the ActiveXperts # Network Monitor web site at https://www.activexperts.com ################################################################################# # Script # File-CheckFileLastLine.ps1 # Description: # Checks if the specified file exists # Parameters: # 1) strPath - UNC formatted file path # 2) strPattern - Search for this pattern in the last line of the file # 3) strCredentials As String - Specify an empty string to use Metwork Monitor service credentials. # To use alternate credentials, enter a server that is defined in Server Credentials table. # (To define Server Credentials, choose Tools->Options->Server Credentials)' Usage: # Usage: # .\File-CheckFileLastLine.ps1 '<\\Server\Share\Path>' '<pattern>' '[altCredentials]' # Sample: # .\File-CheckFileLastLine.ps1 '\\localhost\c$\windows\windowsupdate.log' 'required' ################################################################################# # Parameters param ( [string]$strFileName, [string]$strPattern, [string]$strAltCredentials ) cls # Check paramters input if( [string]$strFileName -eq "" -or [string]$strPattern -eq "" ) { echo "UNCERTAIN: Invalid number of parameters - Usage: .\File-CheckFileLastLine.ps1 '<\\Server\Share\Path>' '<pattern>'" exit } # Create object if( [string]$strAltCredentials -eq "" ) { $exists = Test-Path $strFileName } else { $objCredentials = new-object -comobject ActiveXperts.NMServerCredentials $objRemoteServer = new-object -comobject ActiveXperts.RemoteServer $strUsername = $objCredentials.GetLogin($strAltCredentials) $strPassword = $objCredentials.GetPassword($strAltCredentials) if ($strUsername -eq "") { $res = "UNCERTAIN: No alternate credentials defined for [" + $strAltCredentials + "]. In the Manager application, select 'Options' from the 'Tools' menu and select the 'Server Credentials' tab to enter alternate credentials" echo $res exit } $objRemoteServer.Connect($strAltCredentials,$strUsername,$strPassword) If ($objRemoteServer.LastError -ne 0) { $res = "UNCERTAIN: Login failed" echo $res exit } $exists = Test-Path $strFileName } ################################################################################# # THE SCRIPT ITSELF ################################################################################# # Checks for the file existance if(!($exists)) { $res = "ERROR: File " + $strFileName + " does not exist." echo $res exit } $content = Get-Content $strFileName $result = $content[-1] -match $strPattern if ($strAltCredentials -ne "") { $objRemoteServer.Disconnect( $strAltCredentials) } if ($result -ne 0) { $res = "SUCCESS: Pattern[" + $strPattern + "] was found in line[" + $content.count + "]." echo $res exit } else { $res = "ERROR: Pattern[" + $strPattern + "] was not found in line[" + $content.count + "]." echo $res exit }