PowerShell: Remove old Az modules

I recently ran a Get-Modules -ListAvaiable and I saw a lot of older versions:

Get-Module -ListAvailable Az*

ModuleType Version    Name                                ExportedCommands                                                                                                                      
---------- -------    ----                                ----------------                                                                                                                      
Script     1.6.0      Az.Accounts                         {Disable-AzDataCollection, Disable-AzContextAutosave, Enable-AzDataCollection, Enable-AzContextAutosave...}                           
Script     1.4.0      Az.Accounts                         {Disable-AzDataCollection, Disable-AzContextAutosave, Enable-AzDataCollection, Enable-AzContextAutosave...}                           
Script     1.3.0      Az.Accounts                         {Disable-AzDataCollection, Disable-AzContextAutosave, Enable-AzDataCollection, Enable-AzContextAutosave...}                           
Script     1.0.1      Az.Aks                              {Get-AzAks, New-AzAks, Remove-AzAks, Import-AzAksCredential...}                                                                       
Script     1.1.0      Az.AnalysisServices                 {Resume-AzAnalysisServicesServer, Suspend-AzAnalysisServicesServer, Get-AzAnalysisServicesServer, Remove-AzAnalysisServicesServer...} 
Script     1.0.2      Az.AnalysisServices                 {Resume-AzAnalysisServicesServer, Suspend-AzAnalysisServicesServer, Get-AzAnalysisServicesServer, Remove-AzAnalysisServicesServer...} 
Script     1.0.0      Az.AnalysisServices                 {Resume-AzAnalysisServicesServer, Suspend-AzAnalysisServicesServer, Get-AzAnalysisServicesServer, Remove-AzAnalysisServicesServer...} 
Script     1.2.0      Az.ApiManagement                    {Add-AzApiManagementApiToProduct, Add-AzApiManagementProductToGroup, Add-AzApiManagementRegion, Add-AzApiManagementUserToGroup...}    
Script     1.0.0      Az.ApiManagement                    {Add-AzApiManagementRegion, Get-AzApiManagementSsoToken, New-AzApiManagementCustomHostnameConfiguration, New-AzApiManagementSystemC...
Script     1.0.0      Az.ApplicationInsights              {Get-AzApplicationInsights, New-AzApplicationInsights, Remove-AzApplicationInsights, Set-AzApplicationInsightsPricingPlan...}         
Script     1.3.0      Az.Automation                       {Get-AzAutomationHybridWorkerGroup, Remove-AzAutomationHybridWorkerGroup, Get-AzAutomationJobOutputRecord, Import-AzAutomationDscNo...
Script     1.1.2      Az.Automation                       {Get-AzAutomationHybridWorkerGroup, Remove-AzAutomationHybridWorkerGroup, Get-AzAutomationJobOutputRecord, Import-AzAutomationDscNo...
Script     1.1.0      Az.Automation                       {Get-AzAutomationHybridWorkerGroup, Remove-AzAutomationHybridWorkerGroup, Get-AzAutomationJobOutputRecord, Import-AzAutomationDscNo...
Script     1.1.0      Az.Batch                            {Remove-AzBatchAccount, Get-AzBatchAccount, Get-AzBatchAccountKey, New-AzBatchAccount...}                                             
Script     1.0.0      Az.Batch                            {Remove-AzBatchAccount, Get-AzBatchAccount, Get-AzBatchAccountKeys, New-AzBatchAccount...}                                            
Script     1.0.0      Az.Billing                          {Get-AzBillingInvoice, Get-AzBillingPeriod, Get-AzEnrollmentAccount, Get-AzConsumptionBudget...}                                      
Script     0.2.0      Az.Blueprint                        {Get-AzBlueprint, Get-AzBlueprintAssignment, New-AzBlueprintAssignment, Remove-AzBlueprintAssignment...}                              
Script     1.3.0      Az.Cdn                              {Get-AzCdnProfile, Get-AzCdnProfileSsoUrl, New-AzCdnProfile, Remove-AzCdnProfile...}                                                  
Script     1.1.0      Az.Cdn                              {Get-AzCdnProfile, Get-AzCdnProfileSsoUrl, New-AzCdnProfile, Remove-AzCdnProfile...}                                                  
Script     1.0.1      Az.Cdn                              {Get-AzCdnProfile, Get-AzCdnProfileSsoUrl, New-AzCdnProfile, Remove-AzCdnProfile...}                                                  
Script     1.0.1      Az.CognitiveServices                {Get-AzCognitiveServicesAccount, Get-AzCognitiveServicesAccountKey, Get-AzCognitiveServicesAccountSkus, Get-AzCognitiveServicesAcco...
Script     1.0.0      Az.CognitiveServices                {Get-AzCognitiveServicesAccount, Get-AzCognitiveServicesAccountKey, Get-AzCognitiveServicesAccountSkus, Get-AzCognitiveServicesAcco...
Script     2.4.0      Az.Compute                          {Remove-AzAvailabilitySet, Get-AzAvailabilitySet, New-AzAvailabilitySet, Update-AzAvailabilitySet...}                                 
Script     1.5.0      Az.Compute                          {Remove-AzAvailabilitySet, Get-AzAvailabilitySet, New-AzAvailabilitySet, Update-AzAvailabilitySet...}                                 
Script     1.3.0      Az.Compute                          {Remove-AzAvailabilitySet, Get-AzAvailabilitySet, New-AzAvailabilitySet, Update-AzAvailabilitySet...} 


I wanted to remove all versions except the most recent. Here is my script:


foreach ($module in (Get-Module -ListAvailable Az*).Name |Get-Unique) {
if ((Get-Module -ListAvailable $module).Count -gt 1) {
$Latest_Version = (Get-Module -ListAvailable $module | select Version | Sort-Object Version)[-1]
write-host "Latest $module version $Latest_Version"
Get-Module -ListAvailable $module | Where-Object {$_.Version -ne $Latest_Version.Version} | foreach {Uninstall-Module -Name $_.Name -RequiredVersion $_.Version -verbose}
}
else {
Write-Output "Only one version installed for $module"
}
}

Hope that helps someone.

,

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