PowerShell script to import a module in the current session. It installs the module if it is not.

Install-Module.ps1

param(
    [Parameter(Mandatory=$true)]
    [string]$ModuleName
)

Write-Host "Checking if module '$ModuleName' is installed..."
$moduleInstalled = Get-Module -Name $ModuleName -ListAvailable

if (-not $moduleInstalled) {
    Write-Host "Module '$ModuleName' is not installed. Installing..."
    # Install module
    Install-Module -Name $ModuleName -Force -AllowClobber
}

# Check if module is imported, and import if not
$moduleImported = Get-Module -Name $ModuleName -ErrorAction SilentlyContinue

if (-not $moduleImported) {
    Write-Host "Module '$ModuleName' is not imported. Importing..."
    Import-Module $ModuleName -Force
}