PowerShell: Working with Strings and Hashtables

Question

I have this code:

$passwordsParameters = "sysPassword = 12  &&& testPass = 13 &&& systemPassword = 10"

$parametersList = @($passwordsParameters -split '&&&')

$passwordsTable = @{}


ForEach ($parameter in $parametersList) {
    $splitToKeyValue = @($parameter -split '=')
    $passwordsTable += $passwordsTable = @{
        $splitToKeyValue[0].trim() = $splitToKeyValue[1].trim()
    }
}


ForEach ($pass in $passwordsTable.Keys) {
    if ($passwordsTable[$pass] -ne "") {
        Write-Host "set $pass ="$passwordsTable[$pass]"" 
    } else { 
        Write-Host "A value for the parameter $pass was not entered."
    }
}


# Add-Content "d:\myFile.txt" "set $pass ="$passwordsTable[$pass]""

Which perfectly works when I use Write-Host. But I want to do something like in the comment in line 25. I tried several ways but I always got a static string instead of the values that I get from the Hashtable.

At the end I want to have something like:

set pass1 = 12
set pass2 = 5

in myFile.txt

Any help is appreciated. Thanks!

Answer 1

You could change Write-Host (just prints to a console) to Write-Output ( which passes an object to a pipeline). Write-Output does not print to the console.

$passwordsParameters = "sysPassword = 12  &&& testPass = 13 &&& systemPassword = 10"
$parametersList = @($passwordsParameters -split '&&&')
$passwordsTable = @{}


ForEach ($parameter in $parametersList) {
    $splitToKeyValue = @($parameter -split '=')
    $passwordsTable += $passwordsTable = @{
        $splitToKeyValue[0].trim() = $splitToKeyValue[1].trim()
    }
}

$counter=0
ForEach ($pass in $passwordsTable.Keys) {
    if ($passwordsTable[$pass] -ne "") {
        $counter++
        Write-Output "set "pass$counter = $passwordsTable[$pass]"`n"  | Add-Content -NoNewline myFile.txt 
    } else { 
        Write-Host "A value for the parameter $pass was not entered."
    }
}

Output:

set pass1=10
set pass2=13
set pass3=12