Calling dynamic variable in PowerShell

Question

I am trying to create a new variable that would use other variable with dynamic name as its value. Here\'s what I am trying to do:

I have a System.Array with two val

Answer 1

You want to use Invoke-Expression cmdlet. You need to create dynamic string expression of commands that would initialize variable with the value. Here's how you do it:

$Years = 2015, 2016, 2017, 2018
$Years | ForEach-Object { 
    $Year = $_
    Invoke-Expression ('$Year' + $Year + ' = "Year is ' + $Year + '"')
 }

Here's the output:

Get-Variable Year*

Name                           Value                                                                                                                                                                                                                             
----                           -----                                                                                                                                                                                                                             
Year                           2018                                                                                                                                                                                                                              
Year2015                       Year is 2015                                                                                                                                                                                                                      
Year2016                       Year is 2016                                                                                                                                                                                                                      
Year2017                       Year is 2017                                                                                                                                                                                                                      
Year2018                       Year is 2018                                                                                                                                                                                                                      
Years                          {2015, 2016, 2017, 2018}