If it's installed then that will allow you to use it.
I use a function which checks the PowerShell version and if it's installed or not see below:
It supports -Verbose common parameter and returns true or false depending on the result so it can be used from PowerShell scripts, it also exits with error codes 0 (no error) or 1 (error state) so it can be evaluated from dos batch files etc.
function Enable-PowerCLI ()
{
Write-Verbose ("Entered function : {0} " -f $MyInvocation.MyCommand)
$ModuleName = "VMware.PowerCLI"
if(($PSVersionTable.PSVersion.Major -ge 5) -and ($PSVersionTable.PSEdition -ne "Core"))
{
Write-Verbose "PowerShell version greater/equal to 5 installed"
if (Get-Module -Name $ModuleName){Write-Verbose "PowerShell $ModuleName Module already loaded"; return $True}
else
{
if (!(Get-Module -Name $ModuleName) -and (Get-Module -ListAvailable -Name $ModuleName))
{
try
{
Write-Verbose "loading the PowerShell $ModuleName Module..."
Import-Module -Name $ModuleName -ErrorAction Stop
Write-Verbose ("Exiting function : {0} " -f $MyInvocation.MyCommand)
}
catch # Try to install if loading fails
{
Write-Host "Failed initial loading of PowerShell $ModuleName Module..."
Try
{
Write-Verbose "Checking/Installing NuGet package provider"
if(!(Get-PackageProvider -ListAvailable -Name "NuGet")){Get-PackageProvider -Name NuGet -Force}
Write-Verbose "Setting PowerShell Gallery as trusted Repository"
Set-PSRepository -Name PSGallery -InstallationPolicy Trusted
Write-Verbose "Installing and loading the PowerShell $ModuleName Module..."
Install-Module $ModuleName -scope CurrentUser -Force -ErrorAction Stop
Import-Module -Name $ModuleName -ErrorAction Stop
}
catch{Write-Host "ERROR: Cannot load or install the VMware PowerCLI Module. Please install manually." - ForegroundColor Red;return $false;exit 1}
}
Write-Verbose ("Exiting function : {0} " -f $MyInvocation.MyCommand)
return $True
} # End if (!(Get-Module -Name "VMware.PowerCLI") -and (Get-Module -ListAvailable -Name "VMware.PowerCLI"))
}
} # End if(($PSVersionTable.PSVersion.Major -ge 5) -and ($PSVersionTable.PSEdition -ne "Core"))
elseif(($PSVersionTable.PSVersion.Major -ge 3)-and ($PSVersionTable.PSVersion.Major -lt 5))
{
Write-Verbose "PowerShell version greater/equal to 3 but less than 5 installed"
$ModuleList = @(
"VMware.VimAutomation.Core",
"VMware.VimAutomation.Vds",
"VMware.VimAutomation.Cloud",
"VMware.VimAutomation.PCloud",
"VMware.VimAutomation.Storage",
"VMware.VimAutomation.HA",
"VMware.VimAutomation.vROps",
"VMware.VumAutomation",
"VMware.VimAutomation.License",
"VMware.VimAutomation.Cis.Core"
)
foreach($Module in $ModuleList)
{
if ((!(Get-Module -Name $Module)) -and (Get-Module -ListAvailable -Name $Module))
{
Write-Verbose "loading the $Module Module..."
try
{
Import-Module -Name $Module -ErrorAction Stop
$Loaded = $True
}
catch {Write-Host "ERROR: Cannot load the $Module Module. Is VMware PowerCLI installed?" - ForegroundColor Red;return $false;exit 1} # Error out if loading fails
} # End if ((!(Get-Module -Name $Module)) -and (Get-Module -ListAvailable -Name $Module))
elseif ((!(Get-PSSnapin -Name $Module -ErrorAction SilentlyContinue)) -and (!(Get-Module -Name $Module)) -and ($Loaded -ne $True))
{
Write-Verbose "loading the $Module Snapin..."
Try {Add-PSSnapin -PassThru $Module -ErrorAction Stop}
catch {Write-Host "ERROR: Cannot load the $Module Snapin or Module. Is VMware PowerCLI installed?" - ForegroundColor Red;return $false;exit 1} # Error out if loading fails
}
} # End foreach($Module in $ModuleList)
Write-Verbose ("Exiting function : {0} " -f $MyInvocation.MyCommand)
return $True
}
else{Write-Host "PowerShell version less than 3 installed!" - ForegroundColor Red;return $false;exit 1 }
Write-Verbose ("Exiting function : {0} " -f $MyInvocation.MyCommand)
} # End function Enable-PowerCLI
