vbscript code to read input from text file avoiding manual efforts

Question

I am drilling down Internet to get Vbscript code, where input is read from text file one per line and pass it to the commands in script. I am just a beginner and need help with

Answer 1

This allow to read from arguments collection and from standard input when - is passed as argument

Dim server

For Each server in WScript.Arguments.UnNamed
    If server="-" Then 
        Do While Not WScript.StdIn.AtEndOfStream
            WScript.Echo "Redirected: " + WScript.StdIn.ReadLine
        Loop
    Else 
        WScript.Echo "Argument: " + server
    End If
Next 

This allow to still pass arguments in the command line, and, if any of the arguments is a dash, the stantdard input is read. This will allow you to do any of the following

Usual argument pass

cscript checkServers.vbs server1 server2

Arguments and piped input

type servers.txt | cscript checkServers.vbs server1 server2 - 

Only redirected input

cscript checkServers.vbs - < servers.txt

Redirected input and arguments

< servers.txt cscript checkServers.vbs - serverx

Or any other needed combination of arguments and standard input

type servers.txt | cscript checkservers.vbs server1 server2 - aditionalServer

EDITED to answer to comments

Option Explicit
Dim strServer 

If WScript.Arguments.UnNamed.Length < 1 Then 
    CheckServerUpdateStatus "localhost"
Else
    For Each strServer in WScript.Arguments.UnNamed
        If strServer="-" Then 
            Do While Not WScript.StdIn.AtEndOfStream
                strServer = Trim(WScript.StdIn.ReadLine)
                If Len(strServer) > 0 Then CheckServerUpdateStatus strServer 
            Loop
        Else 
            CheckServerUpdateStatus strServer 
        End If
    Next 
End If
WScript.Quit(0)

Obviously, you need to maintain your CheckServerUpdateStatus function, this code only handles the parameter input.

Answer 2

If you are trying to get the pending windows update installs for a bunch of computers, you can use this in Powershell:

$computers = gc text_file_of_computers.txt
ForEach ($computer in $computers) {
     ("-" * 30)+"`n" # Horizontal line

     Write-Host "Patches not yet installed for $($computer)" -f "Yellow"
     Get-Hotfix -co $computer| Where {$_.InstalledOn -eq $null}

     "`n"+("-" * 30) # Horizontal line
}

As you can see, we only show patches which have a $null value for InstalledOn, which means they have not been installed as yet.

powershell