AzureRM -> Az

Upgrade-AzModule.ps1

# https://docs.microsoft.com/en-us/powershell/azure/uninstall-azurerm-ps

# List versions
Get-Module -Name AzureRM -List | select Name,Version

#Create helper function
function Uninstall-AllModules {
  param(
    [Parameter(Mandatory=$true)]
    [string]$TargetModule,

    [Parameter(Mandatory=$true)]
    [string]$Version,

    [switch]$Force
  )

  $AllModules = @()

  'Creating list of dependencies...'
  $target = Find-Module $TargetModule -RequiredVersion $version
  $target.Dependencies | ForEach-Object {
    $AllModules += New-Object -TypeName psobject -Property @{name=$_.name; version=$_.requiredversion}
  }
  $AllModules += New-Object -TypeName psobject -Property @{name=$TargetModule; version=$Version}

  foreach ($module in $AllModules) {
    Write-Host ('Uninstalling {0} version {1}' -f $module.name,$module.version)
    try {
      Uninstall-Module -Name $module.name -RequiredVersion $module.version -Force:$Force -ErrorAction Stop
    } catch {
      Write-Host ("`t" + $_.Exception.Message)
    }
  }
}

# Uninstall AzureRM versions (replace versions with ones shown from line 4

Uninstall-AllModules -TargetModule AzureRM -Version 6.8.1 -Force
Uninstall-AllModules -TargetModule AzureRM -Version 5.7.0 -Force

# Install Az

Install-Module Az

# Enable AzureRM compatibility
Enable-AzureRmAlias -Scope CurrentUser