Learn all about variables in PowerShell.
In this video, we go over the basics of variables in PowerShell.
You can find the code for this video below.
$Variable = "Nice!" $Variable $Variable | Get-Member $Variable.Length ${my weird-variable!} = "Test" ${my weird-variable!} Get-Variable Get-Variable -Name Variable Get-Variable -Name Variable -ValueOnly Set-Variable -Name 'Test' -Value "Cool" -Scope Global -Description "Nice" -Option ReadOnly Get-Variable -Name Test | Format-List * $Test Clear-Variable -Name 'Test' Remove-Variable -Name 'Test' Remove-Variable -Name 'Test' -Force $Test -eq $null [int]$MyNumber = "123" [int]$MyNumber = "NotANumber" [DateTime]$MyDate = (Get-Date) $MyDate = 10 Push-Location Variable:\ Get-ChildItem New-Item -Path Variable:\ -Name 'MyPathVariable' -Value "Nice" -Force $MyPathVariable Pop-Location $Global:GlobalVar = 123 $Script:ScriptVar = 123 $Local:LocalVar = 123 function Scope1 { $Variable = 123 $Variable } Write-Host "-----" $Variable = 234 Scope1 $Variable function Scope1 { Set-Variable -Name 'Variable' -Value 123 -Scope 1 $Variable } Write-Host "-----" $Variable = 234 Scope1 $Variable Import-Module .\module.psm1 -Force Write-Host "-----" $Variable = 234 Scope2 $Variable $Global:GlobalVar Scope3
function Scope2 { Set-Variable -Name 'Variable' -Value 123 -Scope 1 $Variable $Global:GlobalVar = "FromModule" $Script:ScriptVar = "FromScope2" } function Scope3 { $Script:ScriptVar }