Vbscript reference
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This document provides a quick reference to various VBScript elements including: 1. Sections for displaying output, handling errors, declaring variables, and connecting to WMI/LDAP. 2. Examples of common queries for processes, services, users, and OUs. 3. Covers conditional statements, loops, arrays, functions, and interacting with Office applications. 4. Shows how to execute scripts from the command line using cscript.exe or wscript.exe.
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Vbscript reference
- 1. VBScript Quick Reference VBScript Quick Reference IGNORE RUNTIME ERRORS FORCE VARIABLE DECLARATION DISPLAY TO STANDARD OUTPUT HTA SECTION <head> On Error Resume Next Option Explicit Wscript.Echo “Display this text” <title>HTA Test</title> <HTA:APPLICATION CHECK FOR AN ERROR CLEAR THE ERROR CACHE DISPLAY TO MESSAGE BOX APPLICATIONNAME="HTA Test" SCROLL="yes" SINGLEINSTANCE="yes" If Err.Number Then Err.Clear WINDOWSTATE="maximize" > MsgBox(“Prompt”, vbOKCancel, “Title”) ‘ an error occurred (execute this statement each </head> </head> End If time you check the Err object) DISPLAY TO POPUP DIALOG BOX SCRIPT SECTION WshShell.Popup(“Message”, 5, “Title”, 1) <script language="VBScript“> COMPUTER VARIABLE (local computer) 5: number of seconds to display popup box Sub window_OnLoad 1: displays the OK and Cancel buttons ' Script to run on startup strComputer = “.” End Sub Sub TestSub ' Script code goes here CONNECT TO WMI End Sub </script> Set objWMIService = GetObject("winmgmts:" & strComputer & "rootcimv2") HTML SECTION QUERY: RETRIEVE ALL PROCESSES <body> <input type="button" value="Run Script" Set colProcessList = objWMIService.ExecQuery("Select * from Win32_Process") name="run_button" ") onClick="TestSub"> OPEN TEXT FILE FOR READING </body> QUERY: RETRIEVE ALL SERVICES Const ForReading = 1 Set colServiceList = objWMIService.ExecQuery("Select * from Win32_Service") Set objFSO = CreateObject _ ("Scripting.FileSystemObject") Set objTextFile = objFSO.OpenTextFile _ COMPUTER VARIABLE (local computer) ("c:scriptsservers.txt", ForReading) strComputer = “localhost” CREATE DICTONARY OBJECT RETRIEVE AN OU OPEN TEXT FILE FOR WRITING Set objDictionary = _ Set objOU = GetObject("LDAP://ou=finance,dc=fabrikam,dc=com") Const ForWriting = 2 CreateObject("Scripting.Dictionary") RETRIEVE A USER ACCOUNT Set objFSO = CreateObject _ ("Scripting.FileSystemObject") POPULATE DICTIONARY OBJECT Set objUser = GetObject("LDAP://cn=ken myer, ou=Finance, dc=fabrikam, dc=com") Set objTextFile = objFSO.OpenTextFile _ ("c:scriptsservers.txt", ForWriting) objDictionary.Add key, item BIND TO THE LOCAL COMPUTER Set colAccounts = GetObject("WinNT://" & strComputer)
- 2. VBScript Quick Reference VBScript Quick Reference LOOPS For Loops Do Loops For Each x in arr Do Until x > 5 On Error Resume Next CONDITIONAL STATEMENTS ... ... If Then Select Case Next Loop Const ADS_SCOPE_ONELEVEL = 1 If x = 4 Then Select Case x For i = 1 to 10 Do While x < 5 Set objConnection = CreateObject("ADODB.Connection") Set objCommand = CreateObject("ADODB.Command") … Case 1 ... ... objConnection.Provider = "ADsDSOObject" ElseIf x = 5 ... Next Loop objConnection.Open "Active Directory Provider" Then Case 2 Set objCommand.ActiveConnection = objConnection … ... Do Else Case Else While Loops ... objCommand.Properties("Page Size") = 1000 Loop Until x > 5 objCommand.Properties("Searchscope") = ADS_SCOPE_ONELEVEL ... … End If End Select While x < 5 … Do objCommand.CommandText = _ "SELECT Name FROM 'LDAP://OU=finance,dc=fabrikam,dc=com'“ Wend ... Learn more about scripting Loop While x < 5 Set objRecordSet = objCommand.Execute from the Microsoft Windows 2000 Scripting Guide, ARRAYS available online (and yes, despite the title most of the arrItems = concepts apply to later Array("a","b","c") FUNCTIONS AND SUBROUTINES versions of Windows too): Function Subroutine Dim arr(2) http://www.microsoft.com arr(0) = 20 Function TestFunc Sub TestSub /technet/scriptcenter/guide arr(1) = 30 … … EXCEL TestFunc = 10 End Sub ReDim Preserve arr(3) End Function Set objExcel = CreateObject("Excel.Application") arr(2) = 40 objExcel.Visible = True Set objWorkbook = objExcel.Workbooks.Add WORD Set objWord = CreateObject("Word.Application") objWord.Visible = True Set objDoc = objWord.Documents.Open("c:scriptstest.doc") SEND OUTPUT TO COMMAND WINDOW SET DEFAULT TO CSCRIPT ACCESS Set objAccess = CreateObject("Access.Application") C:> cscript test.vbs C:> cscript //H:cscript objAccess.OpenCurrentDatabase "C:ScriptsTest.mdb" OUTLOOK SEND OUTPUT TO MESSAGE BOX SET DEFAULT TO WSCRIPT Set objOutlook = CreateObject("Outlook.Application") Set objNamespace = objOutlook.GetNamespace("MAPI") C:> wscript test.vbs C:> cscript //H:wscript OUTLOOK