vbscript - 如何将日志添加到我的vbscript

Question

我有此脚本可读取计算机列表，并检查计算机是否安装了正确的软件版本。脚本向我回显了版本错误的计算机，但我想改成日志

Dim strComputer, objFSO, ObjShell, strDisplayName, objList, strObject
Dim objReg, arrSubKeys, strProduct, strVersion, strReqVersion
Const For_Writing = 2
Const ForReading = 1
const ForAppending = 3
Const HKLM        = &H80000002
Const strKeyPath  = "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall"
strReqVersion = "8.2.1 MP2"
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objShell = CreateObject("WScript.Shell")
Set objList = objFSO.OpenTextFile("c:\test\test.txt",ForReading)
Do While Not objList.AtEndOfStream
    strComputer = objList.ReadLine
    If HostOnline(strComputer) = True Then 
       Inventory(strComputer)
    End If 
Loop 
Function Inventory(strComputer)
Set objTextFile = objFSO.OpenTextFile("c:\test\inventory.txt",2,true)
'creating a dictionary object
Set objDictionary = CreateObject("Scripting.Dictionary")
Set objReg = GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & _ 
     strComputer & "\root\default:StdRegProv")
     ' Enumerate the subkeys of the Uninstall key
    objReg.EnumKey HKLM, strKeyPath, arrSubKeys
    For Each strProduct In arrSubKeys
  ' Get the product's display name
        objReg.GetStringValue HKLM, strKeyPath & "\" & strProduct, "DisplayName", strDisplayName
  ' Process only products whose name contain 'symantec'
        If InStr(1, strDisplayName, "Symantec", vbTextCompare) > 0 Then
    ' Get the product's display version
        objReg.GetStringValue HKLM, strKeyPath & "\" & strProduct, "DisplayVersion", strVersion
        If strReqVersion <> strVersion Then
            WScript.Echo strObject
            objDictionary.Add strComputer, strVersion
            For Each strObject In objDictionary
             WScript.Echo strObject

             objTextFile.WriteLine(strObject)
            Next   
            objTextFile.Close               
         End If    
        End If  
    Next
End Function
Function HostOnline(strComputername)
'---------- Test to see if host or url alive through ping -----------------
' Returns True if Host responds to ping
' 
' strComputername is a hostname or IP 
    Const OpenAsASCII = 0 
     Const FailIfNotExist = 0 
     Const ForReading =  1 
     Dim objShell, objFSO, sTempFile, fFile 
    Set objShell = CreateObject("WScript.Shell") 
     Set objFSO = CreateObject("Scripting.FileSystemObject") 
    sTempFile = objFSO.GetSpecialFolder(2).ShortPath & "\" & objFSO.GetTempName 
    objShell.Run "cmd /c ping -n 2 -l 8 " & strComputername & ">" & sTempFile, 0 , True 
    Set fFile = objFSO.OpenTextFile(sTempFile, ForReading, FailIfNotExist, OpenAsASCII) 
    Select Case InStr(fFile.ReadAll, "TTL=") 
         Case 0
            HostOnline = False 
         Case Else
            HostOnline = True 
    End Select 
    ffile.close 
     objFSO.DeleteFile(sTempFile)
    Set objFSO = Nothing
    Set objShell = Nothing
End Function

有人可以帮我吗，谢谢

Answer 1

有几种方法可以做到这一点。最简单的方法，无需对脚本进行任何修改，就是使用cscript.exe调用脚本(在命令提示符下)并将输出重定向到文件:

cscript your.vbs > output.log

但是，如果即使用户双击脚本也要创建日志，则必须更改脚本，以便将其写入文件而不是回显输出。在脚本开头打开日志文件:

Set myLog = objFSO.OpenTextFile("C:\my.log", For_Writing, True)

用 WScript.Echo ...替换 myLog.WriteLine ...，并在退出脚本之前关闭文件:

myLog.Close

一种更复杂的方法是创建一组日志记录功能，这将允许您根据某些条件(例如， LogInfo()用于提供信息日志消息， LogError()用于提供错误。

无耻插件:不久前，我厌倦了一次又一次地编写相同的样板日志记录功能，所以我写了一个 logger class，其中封装了常用的日志记录功能(交互式控制台，文件，事件日志)，并提供了4个日志的日志记录方法。级别(错误，警告，信息，调试)。该类可用于记录到如下文件:

Set myLog = New CLogger
myLog.LogToConsole = False
myLog.LogFile = "C:\my.log"

myLog.LogInfo "info message"
...
myLog.LogError "an error occurred"

释放对象后，日志文件将自动关闭。