PowerShell script function file download, unblock and install with multiple parameters and return installed version

Here’s a PowerShell script that defines a function to download a file, unblock it, install it, and return the installed version. The function accepts multiple parameters for flexibility.

function Install-Software {
    param (
        [Parameter(Mandatory = $true)]
        [string]$DownloadUrl,

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

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

        [Parameter(Mandatory = $true)]
        [string]$VersionCommand
    )

    try {
        # Step 1: Download the file
        Write-Host "Downloading file from $DownloadUrl to $DestinationPath..."
        Invoke-WebRequest -Uri $DownloadUrl -OutFile $DestinationPath -ErrorAction Stop

        # Step 2: Unblock the file
        Write-Host "Unblocking the downloaded file..."
        Unblock-File -Path $DestinationPath

        # Step 3: Install the software
        Write-Host "Installing the software..."
        Start-Process -FilePath $DestinationPath -ArgumentList $InstallerArguments -Wait -NoNewWindow

        # Step 4: Retrieve the installed version
        Write-Host "Retrieving the installed version..."
        $InstalledVersion = Invoke-Expression $VersionCommand

        Write-Host "Installation completed successfully. Installed version: $InstalledVersion"
        return $InstalledVersion
    }
    catch {
        Write-Error "An error occurred: $_"
        return $null
    }
}

# Example usage:
# Replace the parameters below with actual values for your use case.
$DownloadUrl = "https://example.com/software-installer.exe"
$DestinationPath = "C:\Temp\software-installer.exe"
$InstallerArguments = "/quiet /norestart"
$VersionCommand = "software --version"  # Replace with the actual command to check the version

$InstalledVersion = Install-Software -DownloadUrl $DownloadUrl -DestinationPath $DestinationPath -InstallerArguments $InstallerArguments -VersionCommand $VersionCommand

if ($InstalledVersion) {
    Write-Host "Successfully installed version: $InstalledVersion"
} else {
    Write-Host "Installation failed."
}

Explanation:

1. Parameters:
   • DownloadUrl: URL of the file to download.
   • DestinationPath: Path where the file will be saved.
   • InstallerArguments: Arguments for the installer (e.g., silent installation).
   • VersionCommand: Command to retrieve the installed version.
2. Steps:
   • Downloads the file using Invoke-WebRequest.
   • Unblocks the file using Unblock-File.
   • Installs the software using Start-Process.
   • Retrieves the installed version using the provided command.
3. Error Handling:
   • Catches any errors during the process and logs them.

This script is modular and can be adapted for various software installations.